Excellent Coverage, HUGE  VALUE Hard to find Factory Information. 1929 – 1948 Zenith Radio Corporation SERVICE MANUAL This is a Reproduction of Original Zenith Factory Service Data This is a large Manual on CD w/ Adobe Reader – 100's of  Pages of Information These Schematics Cover cover many Tube type Zenith Radios This is a wealth of information for any Radio wanting to be repaired or parting out. Radio Models covered are:

Model         Year      Page......Model     Year      Page         

A                1931         21         241         1933         71

B                1931         21         244         1933         71

C                1931         21         245         1933         71

C-10             1931         23         245-A       1933         71          

D                1931         21         250         1933         75

L                1931         23         250-3       1933         75

LP               1931         25         251         1933         75

AH               1931         27         252         1933         75

CH               1931         27         258         1933        113 

BH               1931         27         259         1933         75

RH               1931         59         260         1933         75

LH               1932         61         261         1933         75

LS               1931         21         262         1933         75

MH               1932         61         263         1932         67

TH               1931         27         268         1933        113

V-8              1931         27         268-A       1933        113

WH               1932         61         269         1933         75

WHA              1932         61         270         1932         63

7 Jr             1934        207         270         1933         63

7                1932         97         271         1933         71

10               1930         13         271-1       1932         97

11               1930         13         271-21      1932         97

12               1930         13         271-31      1932         97

50               1928          1         272         1933         75

52               1928          1         273         1933         85

54               1928          1         277         1933        109

60               1929          1         278         1933        113

60-2             1929          1         280         1933-34     109

61               1929          1         280         1933        113

62               1929          1         280         1933-34     109

64               1929          1         281         1933        113

67               1929          1         281         1933        109

70               1930          9         288         1933        113

71               1930          9         288         1933        109

72               1930          9         288-5       1932         61

73               1930          9         289         1933        113              

77               1930          9         291         1932         63

80               1931         17         292         1932         63

90               1930         27         293         1933        109

90-0             1930         27         293-SX      1933-34     109

91               1931         31         293-X       1933-34     109

92               1931         31         299         1933         75

102              1930         13         410         1933         85

103              1931         47         411         1933         85

112              1930         13         412         1933         85

122              1930         13         414         1933         85

207              1933        131         420         1933         85

208              1933        131         430         1933         89

210              1932        61 & 63     440         1933         89

211              1932         63         441         1933         89

211              1932         63         442         1933         89

215              1932         67         443         1933         85

Model         Year      Page......Model     Year      Page

215-3            1932         67         444         1933         89

216              1932         67         460         1933        133

217              1932         67         462         1934        211

220              1932         63         470         1932         67

220-3            1932         63         470-5       1932        109

221              1932         63         470-5A      1932        109

225              1932         67         472         1933         75

230              1933         71         472-A       1933         75

238              1932        121         473         1933         85

240              1933         71         473-A       1933         85

474              1933        121         623         1932         79

475              1933        125         624         1932         79

476              1933        101         642         1929          1

476-B            1933        105         650         1934        211

478              1933        109         654         1934        193

478              1933        113         657         1934        193

479              1933        105         660         1935        225

479-A            1933        105         660TD       1934        211

500              1932         97         661TE       1934        211

501              1932         97         663         1935        219

502              1932         97         663         1934        211

503              1932         97         664         1935        219

514              1932         97         666         1935        225

515              1932         97         667         1934        193

516              1932         97         668         1935        233

516              1932         75         672         1929          1

516-B            1932         97         688         1933-34     109

517              1932         75         701         1933        129

518              1932         75         702         1933        131

520              1932         93         703         1933        131

521              1932         93         705         1933        117

522              1932         93         706         1933        117

530              1932         79         707         1933        117

531              1932         79         711         1933        117

532              1932         79         712         1933        117

533              1932         79         712         1930          9

550-1.O          1933         75         715         1933        121

558              1932        113         715         1932        121

558-1.0          1933         75         722         1930          9

560              1933         75         725         1933        109

563              1932         83         725-S       1933        109

568              1932        113         732         1930          9

577              1932        109         750         1933        117

578              1932        113         755         1933        121

585              1933        121         756         1933        121

585-1.0          1932        121         757         1933        125

588              1932        109         760         1933        125

588              1933-34     109         765         1933        125

589              1932        113         767         1933        125

589              1933        113         770         1933        101

590              1932        113         770B        1933        105

590              1933-34     109         772         1930          9

Model         Year      Page......Model     Year      Page

593              1932        109         775         1933        101

590-5            1933-34      61         775B        1933        105

593-10           1933-34     109         777         1933        105

600              1932         97         777         1933        105

602              1932         93         780         1933        101

602              1929          1         785         1933        121

603              1932         79         785         1932        121

604              1932         97         788         1933        105

605              1933         93         788         1933        105

606              1932         97         801         1934        179

607A             1933         89         805         1934        171

608              1932         93         806         1934        175

610              1932         97         807         1934        175

611              1932         93         808         1934        159

612              1932         79         809         1934        159

612              1929          1         810         1934        167

615              1932         93         811         1934        167

616              1932         97         812         1934        163

617              1932         79         816         1934        163

618              1932         97         817         1934        163

619              1932         89         819         1934        163

620              1932         79         825         1934        151

621              1932         93         825R        1934        155

621D             1932         93         827         1934        151

622              1929          1         827R        1934        155

3827             1934        155         4B313       1939        462

829              1934        151         4B314       1939        464

829R             1934        155         4B317       1939        464

S829             1934        155         4B422       1940        580

834              1935        143         4B437       1940        580

835              1934        143         4B466       1940        580

845              1934        171         4B468       1940        580

S847             1934        175         4B515       1941          4

850              1934        175         4B536       1941          4

860              1934        159         4B639       1942        167

861              1934        159         4E41                     36B

862              1934        167         4F133       1937        359

865              1934        167         4F227       1938        400

866              1934        167        

868              1936        163         4G800       1948         36

869              1936        163         4G800Z      1948         38

870              1934        151         4G803                   389

870R             1934        155         4K016       1946-47      32

871              1934        151         4K035       1946-47      32

S870             1934        155         4K040       1946-47      34

S871             1934        155         4K310       1939        515

880              1934        143         4K329       1939        517

881              1935        143         4K331       1939        515

885              1935        143         4K332       1939        515

886              1935        143         4K354       1939        515

887              1935        105         4K355       1939        515

908              1935        181         4K400       1940        526

Model         Year      Page......Model     Year      Page

S908             1935        185         4K402       1940        530

909              1935        181         4K422       1940        582

S909             1935        185         4K435       1940        582

922              1931         31         4K465       1940        582

934              1935        143         4K466       1940        582

935              1935        143        

945              1935        189         4K515       1941          6

950              1935        189         4K535       1941          6

960              1935        181         4K570       1941          6

S961             1935        185         4K600       1942        129

962              1935        163         4K616       1942        165

963              1935        167         4K2616      1942        165

966              1935        159         4K635       1942        165

970              1935        193         4K658       1942        165

970              1934        193         4K640       1942        169

975              1935        193        

978              1935        143         4P26        1936        235

980              1935        199         4P51        1936        235

983              1935        143         4T26        1936        239

985              1935        199         4T61        1936        239

990              1935        199         4V31        1936        271

1101             1935        143         4V59        1936        271

1105             1935        143        

1107             1935        199         5D011       1946-47      40

1112             1935        163        

1114             1935        159         5D011Z      1946-47      40

1115             1935        167         5D027       1946-46      40

1116             1935        163         5D027Z      1946-47      40

1117             1935        181         5D610       1942        131

1118             1935        185         5D611       1942        171

1160             1935        159         5D2611      1942        171

1162             1935        167         5D625       1942        131

1167             1935        185         5D627       1942        171

1170             1935        155         5D810       1948         54

1801             1936        163         5D811       1948         52

4B106            1937        328         5G003Z      1946-47      46

4B131            1937        328         5G003ZZ     1946-47      46

4B132            1937        328         5G036       1946-47      50

4B231            1938        402         5G401       1940        532

5G403            1940        532         5S237       1938        404

5G405            1940        532         5S250       1938        404

5G438            1940        584         5S252       1938        404

5G441            1940        534         5S313B      1939        462

5G442            1940        534         5S319       1939        468

5G461            1940        534         5S320       1939        468

5G467            1940        584         5S327       1939        468

5G484            1940        536         5S330       1939        468

5G500            1941          8         5S338       1939        468

5G504            1941         69         5S339       1939        468

5G510            1941         71        

5G534            1941         71         5X230       1939        437

5G537            1941         10         5X248       1939        437

Model         Year      Page......Model     Year      Page

5G572            1941         10         5X274       1938        437

5G603            1941        179    

5G617            1942        177         6B107       1937        330

5G2617           1942        177         6B129       1937        330

5G636            1942        177         6B164       1937        330

                                         6B321       1939        480

5J196            1938        408

5J217            1938        408         6D014       1946-47      56

5J247            1938        408         6D015       1946-47      58

5J255            1938        408         6D015Z      1946-47      58

5J353            1939        408         6D029       1946-47      56

                                         6D030       1946-47      58

5K037            1946-47      48         6D030Z      1946-47      58

5K637            1942        175         6D116       1937        334

                                         6D117       1937        334

5M90            1936         312         6D118       1937        334

5M191           1937         378         6D202       1938        412

5M191           1937         393         6D219       1938        412

5M291           1938         446         6D221       1938        412

5M294           1938         448         6D238       1938        412

5MX080          1946-47      222         6D302       1939        470

                                         6D311       1939        470

5R080           1946-47       42         6D312       1939        472

5R086           1946-47       42         6D314       1939        472

5R086Z          1946-47       42         6D315       1939        519

5R123           1937         375         6D316       1939        519

5R135           1937         375         6D316       1939        472

5R165           1937         375         6D317       1939        472

5R216           1938         406         6D326       1939        470

5R226           1938         406         6D336       1939        470

5R236           1938         406         6D337       1939        472

5R303           1939         466         6D360       1939        470

5R312           1939         466         6D410       1940        538

5R316           1939         466         6D411       1940        538

5R317           1939         466         6D413       1940        540

5R337           1939         466         6D414       1940        540

5R680           1942         173         6D425       1940        538

5R680X          1942         183         6D426       1940        540

5R680XJ         1942         183         6D427       1940        540

5R686           1942         181         6D446       1940        540

5R686 Phono Manual            93         6D455       1940        540

                                         6D510       1941         10

5S29            1936         247         6D512       1941         73

5S56            1936         247         6D516       1941        133

5S119           1937         332         6D520       1941        135

5S126           1937         332         6D525       1941         12

5S127           1937         332         6D526       1941         12

5S150           1937         332         6D538       1941        135

5S151           1937         332         6D539       1941         73

5S161           1937         332         6D612       1942        191

5S201           1938         404         6D2612      1942        191

5S218           1938         404         6D614       1942        185

Model         Year      Page......Model     Year      Page

5S220            1938        404         6D2614      1942        185

5S228            1938        404         6D615       1942        193

6D2615           1942        193         6MN495      1940        562

6D620            1942        309         6MN496      1940        562

6D2620           1942        309         6MN788      1947        270

6D621            1942        185         6MN887      1948        270

6D622            1942        191         6MN988      1949        280

6D623            1942        193         6MW083      1946-47     288

6D628            1942        191

6D629            1942        185         6P416       1940        542

6D630            1942        193         6P417       1940        542

6D644            1942        309         6P418       1940        542

6D815            1948         64         6P419       1940        542

                                         6P428       1940        544

6G001            1946-47      72         6P429       1940        544

6G004y           1946-47      74         6P430       1940        544

6G038            1946-47      76         6P447       1940        544

6G501            1941         75         6P448       1940        544

6G505            1941         75         6P457       1940        544

6G535            1941        137        

6G560            1941        137         6R084       1946-47      66

6G601            1942        189         6R087       1946-47      68

6G638            1942        199         6R087Z      1946-47      68

6G660            1942        199         6R087ZZ     1946-47      70

6G801            1948         78         6R481       1940        588

                                         6R485       1940        586

6J230            1938        416         6R583       1941     13& 30

6J257            1938        416         6R592       1941     13& 30

6J322            1939        482         6R631       1942        187

6J357            1939        482         6R683       1942        195

6J436            1940        592         6R684       1942        195

6J463            1940        592         6R684 Phono Manual      195

                                         6R687       1942        195

6M92             1936        314         6R687 Phono Manual       93

6M90S            1936        316         6R688       1942        195

6M90D            1936        316         6R886       1947-48      62

6M91S            1936        318         6R886Z      1947-48      29d

6M91D            1936        318         6S27        1936        251

6M192            1937        381         6S52        1936        251

6M192            1937        394         6S128       1937        338

6M193            1937        384         6S137       1937        338

6M193            1937        395         6S147       1937        338

6M194            1937        384         6S152       1937        338

6M194            1937        395         6S157       1937        338

6M292            1938        450         6S171       1937        338

6M293            1938        450         6S203       1938        414

6M295            1938        452         6S222       1938        414

6M390            1939        511         6S223       1938        414

                                         6S229       1938        414

6MF080           1946-47     230         6S239       1938        414

6MF490           1940        570         6S241       1938        414

6MF590           1941         49         6S249       1938        418

Model         Year      Page......Model     Year      Page

6MF593           1941        103         6S254       1938        418

6MN595           1941         41         6S256       1938        418

6MN596           1941         41         6S275       1938        414

6MF690           1942        261         6S301       1939        474

6MW693           1942        269         6S304       1939        474

6MN695           1942        277         6S305       1939        474

6MF780           1947-48     238         6S306       1939        474

6MF780E          1947-48     238         6S321       1939        474

                                         6S322       1939        474

6MH081           1946-47     246         6S330       1939        476

6MH089           1946-47     254         6S340       1939        474

6MH699           1942        293         6S341       1939        478

6MH889           1947-48     262         6S351       1939        478

6MM790           1947-48     238         6S352       1939        478

6MM790E          1947-48     238         6S361       1939        478

6MN082           1946-47     270         6S362       1939        478

5MN088           1936        270         6S439       1940        590

6S469            1940        590         7S260       1938        422

                                         7S261       1938        422

6S511            1941         14         7S323       1939        486

6S511W           1941         14         7S342       1939        486

6S527            1941         14         7S343       1939        486

6S528            1941         14         7S363       1939        486

6S532            1941        139         7S364       1939        486

6S546            1941         16         7S366       1939        486

6S556            1941         16         7S432       1940        546

6S580            1941     14& 31         7S432       1940        594

6S596            1941         77         7S433       1940        546

6S596 Phono Manual            93         7S433       1940        594

6S596J Phono Manual          119         7S434       1940        546

6S597            1941         77         7S434       1940        594

6S597 Phono Manual           119         7S449       1940        546

6S597J Phono Manual          119         7S449       1940        594

6S632            1942        197         7S450       1940        546

6S646            1942        197         7S450       1940        594

6S656            1942        197         7S458       1940        546

                                         7S458       1940        594

6V27             1936        275         7S459       1940        546

6V62             1936        275         7S459       1940        594

                                         7S460       1940        546

7D119            1937        336         7S460       1940        594

7D126            1937        336         7S641       1940        546

7D127            1937        336         7S461       1940        594

7D138            1937        336         7S462       1940        546

7D148            1937        335         7S462       1940        594

7D162            1937        336         7S487       1940        548

7D168            1937        336         7S487       1940        596

7D203            1938        420         7S487 Phono Manual      555

7D222            1938        420         7S488       1940        548

7D223            1938        420         7S488       1940        596

7D229            1938        420         7S488 Phono Manual      555

7D239            1938        420         7S490       1940        548

Model         Year      Page......Model     Year      Page

7D241            1938        420         7S490       1940        596

7D243            1938        420         7S529       1941         20

7D253            1938        420         7S530       1941         20

                                         7S547       1941         20

7G605            1942        311         7S557       1941         20

                                         7S558       1941         20

7H820            1948         82         7S559       1941         20

7H822            1948         84         7S581       1941     20& 31

7H921                         84A        7S581 Phono Manual       97

7H918                         84B       

7J232            1938        424         7S582       1941     20& 31

7J259            1938        424         7S582 Phono Manual       97

7J323            1939        484         7S584       1941     20& 31

7J328            1939        484         7S584 Phono Manual       97

7J368            1939        484         7S585       1941         18

                                         7S585 Phono Manual      555

7M91S            1936        320         7S591       1941     20& 31

7M91D            1936        320         7S591 Phono Manual       93

7ML080           1946-47     296         7S591J      1941     20& 31

7ML081           1946-47     296         7S591J Phono Manual     119

7ML592           1941         57         7S598       1941        141

7ML780           1947-48     304         7S598 Phono Manual       93

7ML781           1947-48     304         7S598J Phono Manual     119

                                         7S633       1942        201

7R070            1946-47      60         7S633R      1942        201

                                         7S634       1942        201

7S28             1936        255         7S634R      1942        201

7S53             1936        255         7S657       1942        201

7S204            1938        422         7S675R      1942        201

7S242            1938        422         7S682       1942        203

7S258            1938        422         7S682 Phono Manual      203

7S685            1942        203         9H085       1946-47      94

7S685 Phono Manual            93         9H088       1946-47      94

                                         9H881       1948        102

8G005         1946-47-48      96         9H882       1948        102

8G0055T       1946-47-48     100         9H885       1948        102

                                         9H888       1948        102

                                         9H984       1948        361

8H023            1946-47      88         9H984LP     1948        361

8H023Z           1946-47      90              

8H032            1946-47      92         9S30        1936        259

8H033            1946-47      92         9S54        1936        259

8H034            1946-47      88         9S55        1936        259

8H034Z           1946-47      90         9S204       1938        426

8H050            1946-47      92         9S232       1938        426

8H051            1946-47      92         9S242       1938        426

8H052            1946-47      92         9S244       1938        426

8H061            1946-47      92         9S262       1938        426

                                         9S263       1938        426

                                         9S264       1938        426

8M195            1937        386         9S307       1939        490

8M195            1937        396         9S324       1939        490

Model         Year      Page......Model     Year      Page

                                       9S344       1939        490

8MF880           1948        306         9S365       1939        488

8MF881           1948        314         9S367       1939        490

8MF980           1949        306         9S369       1939        490

8ML692           1942        285        

8ML882           1948-49     322         10H551      1941         81

8ML882Z          1948-49     322         10H571      1941         81

8ML982           1948-49     330         10H571R     1941        143

8ML982Z          1948-49     330         10H573      1941        143

8MM890           1948-49     332

8MM990           1949        340         10S130      1937        342

                                         10S147      1937        342

8S129            1937        340         10S153      1937        342

8S154            1937        340         10S155      1937        342

8S359            1939        521         10S156      1937        342

8S432            1940        616         10S157      1937        342

8S434            1940        616         10S160      1937        342

8S443            1940        598         10S443      1940        600

8S449            1940        616         10S452      1940        600

8S450            1940        616         10S464      1940        600

8S451            1940        598         10S470      1940        600

8S458            1940        616         10S491      1940        600

8S459            1940        616         10S491 Phono Manual     555

8S460            1940        616         10S492      1940        600

8S461            1940        616         10S492 Phono Manual     555

8S462            1940        616         10S531      1941         26

8S463            1941        598         10S549      1941         26

                                         10S566      1941         26

8S487            1940        616         10S567      1941         26

8S531            1941         24         10S589      1941     26& 32

8S548            1941         24         10S589 Phono Manual      97

8S563            1941         24         10S590      1941     26& 32

8S586            1941         22         10S590 Phono Manual      97

8S586 Phono Manual           555         10S599      1941        144

8S587            1941      24-31         10S599 Phono Manual     153

8S587 Phono Manual            97         10S668      1941        207

8S588            1941      24-31         10S669      1941        207

8S588 Phono Manual            97         10S690      1941        207

8S593            1941         79         10S690 Phono Manual     225

8S594            1941         79       

8S594J Phono Manual          111         11S474      1940        602

8S647            1942        205  

8S661            1942        205         12A57       1936        263

9H079            1946-47      94         12A57-L     1936        263

9H081            1946-47      94         12A58       1936        263

9H082            1947-47      94         12A58-L     1936        263       9H082 Chairside Drive-out    207         12H090      1946-47-48  104

      Motor   Schematic  

12H091           1946-47-48  104         15S495      1940        606

12H091-93 Chairside Driveout             15S495 Phono Manual     555

              Schematic      207         

Model         Year      Page......Model     Year      Page

12H091Z          1946-47-48  104         15U246      1938        430

12H092           1946-47-48  104         15U269      1938        430

12H092Z          1946-47-48  104         15U270      1938        430

12H093           1946-47-48  104         15U271      1938        430

12H093Z          1946-47-48  104         15U272      1938        430

12H094           1946-47-48  104         15U273      1938        430

12H094Z          1946-47-48  104

12H650           1942        211         16A61 Str.  1936        279

12H670           1942        211         16A61 Str.  1936        279

12H671           1942        211         16A63 Str.  1936        279

12H678           1942        209        

12H678 Phono Manual          225         22H698      1942     315-17

12H679           1942        209         22H698 Phono Manual     249

12H679 Phono Manual          225         22H699      1942     315-17

12H689          1942         213         22H699 Phono Manual     249

12H689 Phono Manual          225         S-8500 Record Player     30

12H691          1942         213         S-8500Z Record Player    84

12H691 Phono Manual          225         S-8501  Record Player    30

12H695          1942         213         S-8501Z Record Player    84

12H695 Phono Manual          225         S-9000  Record Player    84

12H696          1942         213         S-9000 Wireless Recorder 93

12H696 Phono Manual          225         S-9001 Record Player    214

                                         S-9002 Record Player    214

12S205          1938         428         S-9005                  319

12S232          1938         428        

12S245          1938         428         S-11468 Record Changer  110

12S265          1938         428         S-11680 Record Changer  126

12S266          1938         428         S-13675 Record Changer  158

12S267          1938         428         S-14001 Record Changer  142

12S268          1938         428         S-14002 Record Changer  158

12S345          1939         492         S-14004 Record Changer  178

12S370          1939         492         S-14006 Record Changer  158

12S371          1939         492         S-14007 Record Changer  178

12S374          1939         428         S-14008 Record Changer  158

12S445          1940         604       

                                         S-14012-14-19-21        158A

12S453          1940         604         Radio Nurse  1939       441

12S471          1940         604         Strato. 1st.

12S475          1940         604         Ser.         1935       287

12S494          1940         604         Strato 2nd              299

12S494 Phono Manual          555         Ser.         1935       299

12S550          1940          28         

12S550Z         1941          83         Tube Data Sheet         367

12S568          1941          28         Phono. Circ. 1938       432

12S568Z         1941          83         Phono.          

12S569          1941          28         Connections   1939      496

12S569E         1941          83         Phono.

12S569Z         1941          83         Connections   1940      608

12S595          1941       28-32         Ravox         1940      618

12S595 Phono Manual           97         Record Changer 1938     507

12S595Z         1941          85         Record Changer 1939     503

12S595Z Phono Manual          97         Record Changer 1940     556

Model         Year      Page......Model     Year      Page

                                                                                                  Record Changer 1939 S6622 523

12U158           1937        346         Record Changer 1940 S7000 550

12U159           1937        346         Record Player  1940 S7001 550

                                         Record Player  1940 S7002 550

14H697           1942        313         Record Player  1940 S7003 550

14H789           1947-48     108

15S308           1939        494

15S346           1939        494

15S372           1939        494        Record Changer E-1      93

15S373           1939        494        Record Changer W-2      97

15S479           1940        606        Record Changer & Recorder S-1 11

                                        Record Changer W-3      119

                                        Record Changer W-4      153

                                        Record Changer W-5      249

                                      Household Service Bulletin No.1    182

                                      Household Service Bulletin No.2    186

                                      Household Service Bulletin No.3    194

                                      Household Service Bulletin No.4    202

                                      Ford Mercury Integral Antenna      342

                                      Auto Radio Service Bulletin No.1   344

                                      Auto Radio Service Bulletin No.2   347

                                      Auto Radio Service Bulletin No.3   350

                                      Auto Radio Service Bulletin No.4   354

                                      Auto Radio Service Bulletin No.5   357

 Model A , B, C, D , L, LP , AH , CH , BH, RH , LH, WH , MH , 7 Jr. (Auto Receiver) , 10, 11, 12, 50 , 52 , 54 , 60, 61 , 62 , 64 , 67 , 70 , 71 , 72 , 73 , 77 , 80 , 91 , 92 , 102 , 103 , 112 , 122 , 210 , 211 , 215 , 216 , 217 , 220 , 221 , 225 , 230 , 240 , 241 , 244 , 245 , 250 , 251 , 252 , 258 , 259 , 260 , 261 , 262 , 263 , 268 , 269 , 270 , 271 , 272 , 273 , 277 , 278 , 280 , 281 Chassis 2051 and Model 281 Chassis 2056 , Model 288 , 289 , 291 , 292 , 293 , 299 , 410, 411 , 412 , 414 , 420 , 430 , 440 , 441 , 442 , 443 , 444 , 460 , 462 , 470 , 472 , 473 , 474 , 475 , 476 , 476B , 478 , 479 , 500 , 501 , 502 , 503 , 514 , 515 , 516 , 517 , 518 , 520 , 521 , 530 , 531 , 532 , 533 , 558 , 563 , 568 , 577 , 578 , 585 , 588 , 589 , 590 , 593 , 600 , 602 , 603 , 604 , 605 , 606 , 608 , 610 , 611 , 612 , 615 , 616 , 617 , 618 , 619 , 620 , 622 , 623 , 642 , 650 , 660 , 663 , 664 , 666 , 668 , 672 , 701 , 702 , 705 , 706 , 707 , 711 , 712 , 712 , 715 , 722 , 732 , 750 , 755 , 756 , 757 , 760 , 765 , 767 , 770 , 770B , 772 , 775 , 775B , 777 , 780 , 785 , 788 , 801 , 805 , 807 , 808 , 809 , 810 , 811 , 812 , 816 , 817 , 819 , 825 , 827 , S827 , 829 , S829 , 835 , 845 , S847 , 850 , 861 , 862 , 865 , 866 , 870 , S870 , S871 , 880 , 881 , 885 , 887 , 908 , S908 , 909 , S909 , 935 , 945 , 950 , 960 , S961 , 962 , 963 , 966 , 970 , 975 , 978 , 980 , 983 , 985 , 990 , 1101 , 1105 , 1107 , 1112 , 1114 , 1115 , 1116 , 1117 , 1118 , 1160 , 1162 , 1167 , 1170 , 4B106 , 4B131 , 4B132 , 4-B-231 , 4-B-313 , 4-B-314 , 4-B-317 , 4-B-422 , 4-B-437 , 4-B-466 , 4-B-468 , 4F133 , 4F227 , 4K310 , 4K329 , 4K331 , 4K332 , 4K354 , 4K355 , 4K400 , 4K402 , 4K422 , 4K435 , 4K465 , 4P26 , 4P51 , 4T26 , 4T51 , 4V31 , 4V59 , 5F134 , 5F166 , 5-F-233 , 5-F-251 , 5-G-401 , 5-G-438 , 5-G-441 , 5-G-442 , 5-G-461 , 5-G-467 , 5-G-484 , 5-J-217 , 5-J-247 , 5-J-255 , 5-J-353 , 5M90 , 5M191 , 5M191 , 5M291 , 5M294 , 5R123 , 5R135 , 5R165 , 5-R-216 , 5-R-226 , 5-R-236 , 5-R-303 , 5-R-312 5-R-316 , 5-R-317 , 5-R-337 , 5S29 , 5S56 , 5S119 , 5S125 , 5S127 , 5S150 , 5S151 , 5S161 , 5-S-201 , 5-S-218 , 5-S-220 , 5-S-228 , 5-S-237 , 5-S-250 , 5-S-252 , 5-S-319 , 5-S-327 , 5-S-330 , 5-S-338 , 5-S339 , 5X230 , 5X248 , 5X274 , 6B107 , 6B129 , 6B164 , 6-B-321 , 6D116 , 6D117 , 6D118 , 6-D-202 , 6-D-219 , 6-D-221 , 6-D-238 , 6-D-302, 6-D-311 , 6D315 , 6-D-326 , 6-D-312 , 6-D-316 , 6-D-317 ,6-D-336 , 6-D-337 , 6-D-360 6-D-410 , 6-D-411 , 6-D-413 , 6-D-414 , 6-D-425 , 6-D-426 , 6-D-427 , 6-D-446 , 6-D-455 , 6-J-230 . 6-J-257 , 6-J-322 . 6-J-357 , 6-J-436 , 6-J-463 , 6M92 , 6M90S , 6M90D , 6M91S , 6M91D , 6M192 , 6M193 , 6M194 , 6M292 , 6M293 , 6M295 , 6M390 , 6MF490 , 6MN495 , 6MN496 , 6P416 , 6P417 , 6P418 , 6P419 , 6P428 , 6P429 , 6P430 , 6P447 , 6P448 , 6P457 , 6R481 , 6R485 , 6S27 , 6S52 , 6S128 , 6S137 , 6S147 , 6S152 , 6S157 , 6-S-203 , 6-S-222 , 6-S-223 , 6-S-229 , 6-S-239 , 6-S-241 , 6-S-254 , 6-S-256 , 6-S-301 , 6-S-304 , 6-S-305 , 6-S-306 , 6-S-321 , 6-S-322 , 6-S-330 , 6-S-340 , 6-S-341 , 6-S-351 , 6-S-352 , 6-S-361 , 6-S-362 , 6-S-439 , 6-S-469 , 6V27 , 6V62 , 7D119 , 7D126 , 7D127 , 7D138 , 7D148 , 7D151 , 7D162 , 7D168 , 7-D-203 , 7-D-222 , 7-D-223 , 7-D-229 , 7-D-239 , 7-D-241 , 7-D-243 , 7-D-253 , 7-J-232 , 7-J-259 , 7-J-323 , 7-J-368 , 7M91S , 7M91D , 7S28 , 7S53 , 7-S-204 , 7-S-232 , 7-S-240 , 7-S-242 , 7-S-258 , 7-S-260 , 7-S-251 , 7-S-323 , 7-S-342 , 7-S-343 , 7-S-363 , 7-S-364 , 7-S-366 , 7-S-432 , 7-S-432 , 7-S-433 , 7-S-434 , 7-S-449 , 7-S-449 , 7-S-450 , 7-S-458 , 7-S-459 , 7-S-460 , 7-S-461 , 7-S-462 , 7-S-487 , 7-S-488 , 7-S-490 , 8M195 , 8S129 , 8S154 , 8S359 , 8S432 , 8S433 , 8S434 , 8S443 , 8S449 , 9S450 , 8S451 , 8S458 , 8S459 , 8S460 , 8S461 , 8S462 , 8S463 , 9S30 , 9S54 , 9S55 , 9-S-204 , 9-S-232 , 9-S-242 , 9-S-244 , 9-S-262 , 9-S-263 , 9-S-264 , 9-S-307 , 9-S-324 , 9-S-344 , 9-S-365 , 9-S-367 , 9-S-369 , 10S130 , 10S147 , 10S153 , 10S155 , 10S156 , 10S157 , 10S160 , 10S443 , 10S452 , 10S454 , 10S470 , 10S491 , 10S492 , 11S474 , 12A57 , 12A58 , 12-S-205 , 12-S-232 , 12-S-245 , 12-S-265, 12-S-267 , 12-S-268 , 12-S-345 , 12-S-370 , 12-S-371 , 1`2-S-374 , 12-S-445 , 12-S-453 , 12-S-471 , 12-S-475 , 12-S-494 , 12U158 , 12U159 , 15-S-308 , 15-S-346 , 15-S-372 , 15-S-373 , 15-S-479 , 15-S-495 , 15-U-246 , 15-U-269 , 15-U-270 , 15-U-271 , 15-U-272 , 15-U-273 , 16A61 Str. , 16A63 Str. , Radio Nurse , Stratosphere 25 Tube First Series , and Stratosphere Second Series , Tube Data Sheet , Ravox Hearing Aid , Record Changer for 1938 , 1939 , and 1940 . Shortwave & AM , This Manual does cover a lot of ground and cover I believe ALL Zeniths produced between 1929 and 1940. These Schematics show how to troubleshoot all the tubes and how to bring A non-working unit back to life, even if you can not read these schematics or Diagrams they are invaluable to a Service Technician working on a Older Unit. Plate Voltages are shown, Capacitor and resistor Values are show if one is Burned up or missing. All Tube Numbers are shown if a tube is missing. Speaker Field resistance values are shown to aid in troubleshooting the Speaker and Sound output. This is a High Quality, Easy to read re-production from Original Schematics. (Note: Picture shown is only an Example) ALSO: If you are looking for Old Radio Schematics, ALL Makes, All Models (US Only) I am always listing new Sets, Good Luck. Key Zenith Manual I (Remember this is a CD, You must be satisfied with its operation, no complaints yet. Copyright Reserved and CD Coded for Tracing.