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PRICE IS EACH PAIR! SELECT 1 FOR A MATCHED PAIR 

or select 2 for a MATCHED QUAD!


Made in the U.S.A. in the 1960's

NOS SYLVANIA

 GOLD PINS U.S.Navy 6922

USN CHS 6922 = E88CC

(Works in preamps that accept E88CC, 6922, 7308, CCa variants)

1963 SYLVANIA NAVY USN-CHS 6922 E88CC GOLDPIN GRAY-PLATE MATCHED PAIR TUBES 100% - Picture 2 of 14

ALL PICTURES ARE OF THE ACTUAL TUBES YOU WILL RECEIVE 

with GENUINE UN-NUMBERED SYLVANIA YELLOW BOXES

PRICE IS EACH PAIR! SELECT 1 FOR A MATCHED PAIR 

or select 2 for a MATCHED QUAD!

 U.S.N. = UNITED STATES NAVY

CHS = SYLVANIA CODE

1963 SYLVANIA NAVY USN-CHS 6922 E88CC GOLDPIN GRAY-PLATE MATCHED PAIR TUBES 100% - Picture 10 of 14

with GOLD PINS

1960's GRAY ELECTROSTATIC SHIELD


TUBE MUSEUM CERTIFIED

AMPLITREX DIGITALLY TESTED


Actual tube was tested on the State-of-the-Art AMPLITREX AT-1000 Advanced Electron Tube Test System. 


(PAIR # 1, AVAILABLE NOW!) 


GET THIS PHENOMENAL PAIR BEFORE IT'S GONE! THIS WON'T LAST!


PAIR 1: TUBE 1:


1963 SYLVANIA NAVY USN-CHS 6922 E88CC GOLDPIN GRAY-PLATE MATCHED PAIR TUBES 100% - Picture 12 of 14


14,0mA / 13,000 (104%)

12,6mA / 12,580 (100%)


1963 SYLVANIA NAVY USN-CHS 6922 E88CC GOLDPIN GRAY-PLATE MATCHED PAIR TUBES 100% - Picture 11 of 14


PAIR 1: TUBE 2:


1963 SYLVANIA NAVY USN-CHS 6922 E88CC GOLDPIN GRAY-PLATE MATCHED PAIR TUBES 100% - Picture 13 of 14


13,4mA / 12,600 (100%)

12,6mA / 12,520 (100%)


1963 SYLVANIA NAVY USN-CHS 6922 E88CC GOLDPIN GRAY-PLATE MATCHED PAIR TUBES 100% - Picture 14 of 14


mA RISES on the Amplitrex when switching to GM - Great Life-Test!

SEE the ACTUAL TEST RESULTS RIGHT OFF THE AMPLITREX SCREEN FOR PAIR 1 (AVAILABLE NOW!)

1963 SYLVANIA NAVY USN-CHS 6922 E88CC GOLDPIN GRAY-PLATE MATCHED PAIR TUBES 100% - Picture 7 of 14

 TESTED IN THE "FIXED-BIAS" MODE most similar to Hickok settings

with closely matched Mu (TUBE-GAIN), (iPmA/dc) PLATE-CURRENT, and RP OHMS (PLATE-RESISTANCE)

with Heater-to-Cathode Leaks!

BEST TEST RESULTS ABOVE 100% IN EACH TRIODE! 

ALL PASSED THE AMPLITREX DIGITAL TESTS with NO HEATER-TO-CATHODE LEAKS!

Low-Noise Tested Microphonic Free

No H-to-K Leakage (Heater-to-Cathode) (0) zero!



CERTIFIED LOW-NOISE MUSEUM SPECIMENS

TubeMuseum tested tubes takes the guesswork out of the process of selection delivering you the best Audio tubes that there possibly can be.   

Terms of Auction

Per eBay's terms of service which every eBay account holder must agree to as part of being an eBay member, a bid is a legally binding contract. Please read the Terms & Conditions carefully before bidding. By bidding on this auction, you understand and agree to eBay's terms of service as well as all terms and conditions mentioned here.

Buyer pays all shipping, Original shipping is not refundable. Item must be in original condition including cosmetic lettering on tubes so handle with white-glove care, un-used with all original boxes, packing material, environmentally safe cornstarch pellets, and shipping box.  All sales are final with NO RETURNS on self installed mic tubes.

All exchanges must be pre-paid and returned in original packing, complete with no sign of wear or abuse, exactly the same condition as it was when you received it. In the event that the product is not in the same condition, and does not test the same as you received it, you will be subject to a refusal and return, a determined restocking fee, repair charge, or disqualification. RETURN AUTHORIZATION (RA) number and instructions is required before sending any items. Shipping and handling charges are non-refundable.

We do not guarantee that your tester, or your tester's measurements will be the same as the Amplitrex AT-1000. Older testers, different testers, or the same tester may report different test measurements, and may not measure the same tube meaningfully (due to current dependency), accurately (due to calibration difficulties) or consistently (due to internal circuit drift) There is no warranty or returns based on what any other tube tester reports.

THE COST OF ALL USA SHIPPING INCLUDES INSURANCE, TRACKING NUMBER AND DELIVERY CONFIRMATION

NOTICE: 

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