USED tubes, all have been tested, most on Hickok 539C.

Assorted brands 

A single purchase is for ONE tube.

The drop down menu displays the price and available quantity of each tube.

Tubes sold based on test results of my equipment, your results will be different.

Note: Rectifier/diodes do not have gm readings, scale is marked rectifiers & diodes OK above line.

#135 St style 12A National Union Minimum 1040 tests 2750

#136 Globe 485 Sparton Minimum 820 tests low at 700 on TV-3

#137 Globe C 481 CARDON unable to test, as-is filament OK

#138 ST RCA JAN 6Y6G Minimum 3150 tests 6500

#139 Globe Type 80 Philco Display tube open filament

#140 Globe RCA Radiotron UX 280 Tests good

#141 Globe Cunningham CX 380 Tests slightly below minimum

#142 Globe RCA Radiotron UX 281 tests excellent

#143 Globe Majestic G 81 tests good

#144 ST style National Union 43 minimum 1450 test 1700

#145 ST style Philco 26 Minimun 725 test 1150

#146 ST style Silvertone 1A4 Minimun 470 test 750

#147 ST style Super Silvertone 32 Minimum 400 test 700

#148 ST style Majestic 2A6S most spray shielding gone, triode section  tests low

#149 ST style RCA Cunningham 43 minimum 1450 test 1500

#150 ST style National Union 36 minimum 660 test 1300

#151 ST style General Electric 57 minimum 770 test 1350

#152 ST style Super Silvertone 950 minimum 600 test 1200

#153 ST Silvertone 1A4 minimum 470 test 800

#154 ST style Silvertone 230 minimum 570 test 1200

#155 ST style Raytheon 2A3 Display tube open filament

#156 Globe RCA Radiotron UX 226 minimum 725 test 1000

#157 ST style Super Silvertone 43 Display tube - gassy

#158 ST style Raytheon 19 Minimum 630/630 test 1200/1750

#159 ST style National Union 80 Tests good

#160 - 27 ST Zenith Min-600 test=1000

#161 - 27 ST RCA Radiotron Min 600 test=1000

#162 - 37 ST Sylvania min 570 test=1500

#163 - 41 ST Philco  min 1000 test=1650

#164 - 41 ST Philco min 1000 test=1500

#165 - 42 Philco min 1640 test=3000

#166 - 42 ST Philco min 1640 test=1900

#167 - 45 ST Philco min 1170 test=600 TESTS LOW

#168 - 56 ST RCA Radiotron min 920 test=1800

#169 - 56 ST RCA Radiotron min 920 test=1650

#170 - 56 Globe RCA Radiotron min 920 test=2100

#171 - 56 Globe AK by Cunningham min 920 test=2150

#172 - 78 ST Philco min 900 test=1000

#173 - 84/6Z4 ST Tung Sol Rectifier tests good

#174 - 37 ST RCA min 570 test=1050

#175 - 37 ST RCA min 570 test= 1100

#176 - 25Z5 ST Super Silvertone Tests good

#177 - 25Z5 ST RCA Tests good

#178 - 25Z5 ST Philco Tests good 

#179 - 25Z5 ST Raytheon Tests good

#180 - 25Z5 ST USN CRC RCA Tests good

#181 - 5Y3G ST tests good, base slightly loose

#182 - 2A7 ST Sylvania  (tests low)

#183 - 2X2/879 USN CRC brand rubbed off tests good, base slightly loose.

#184 - 6A7 ST brand rubbed off min 1000/280 test=1800/330

#185 - 2B7 ST Shielded min 630/rectifier test= 1100/ok/ok

#186 - 6D6 ST Ken Rad min 1000 test= 1500

#187 - 6F7 ST National Union min 700/315 test= 1100/600

#188 - 6F7 ST National Union min 700/315 test= 850/850

If for any reason beyond our control we are unable to fill your order, we will issue a prompt no hassle refund, but will first email you for guidance.

We are not wholesalers, and do not encourage best offers, or offer quantity discounts.

Shipping: We ship Monday through Friday, (except holidays when the post office is closed) usually the day after receiving payment.

We use USPS exclusively. Packages are shipped by USPS First Class mail. (Priority if over 15.9 ounces)

International shipping is by USPS First Class International. (up to four pounds)

You will receive an email when the shipping label is printed containing shipping details and tracking information. If eBay & paypal do not have your current email address, you may not be notified. 

Tracking for International packages sometimes ends when it leaves the USA, and our postal system. 

If so, I have no way to find out where your package is, but be patient. Delays are usually at the customs department of the destination country. (if it left the USA, it already cleared our customs department) 

Shipping discounts will be automatically applied (when applicable) at checkout IF all purchases are paid at one time, with a single payment. 

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