Untested. I do not know much about this tube except it came from an old Hickok tube tester. No Reserve.

 

PAIR OF SYLVANIA 6SN7 GTB BLACK PLATEVINTAGE PRE AMP AUDIO VACUUM TUBES MADE IN USA BOTH TESTED STRONG ON DYNA JET TUBE TESTER SHIPPING IS 3.99 US- 12.99 INTERNATIONAL FEEL FREE TO ASK ANY QUESTIONS T

 

This Sharp 8 digit Math student "Thin-Man" scientific calulator with Comprehensive applicaton book is complete. Model EL-509A-T with text. Original box in good condition and interior clear plastic tra

 

KLH Burwen Research Dynamic Noise Filter DNF1201A. When plugged in, will not power on. No further testing. No attempt at repair. Power button is sticky.

 

Vintage Altec Lansing 409 8t driver pair audiophile- Vintage, but still work and sound great- were installed in a hotel ceiling- keeping on plate for ease of shipping- See photos- ask questions- Fed E

 

You're looking at a Cunningham CX-345 Tube. This tube tests at 1450 on my TV-10/U where the minimum is 1170. You will get a test sheet with each tube you have purchased. They are being sold in "as-is"

 

Nagra ND-EPC External DC Power Converter for Nagra D 11-30V This extremely rare power supply is in VERY good condition. This device allows powering of the Nagra D/DII in the field from an external DC

 

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Pioneer Laser disc Payer CLD-V2400 PIONEER CD/CDV/LD PLAYER PIONEER LASER DISC WORKS GREAT, NO REMOTE A FEW SCRATCHES AS SEEN

 

Up for auction is a lot of 23 vintage 6V6 tubes. All tubes have the code "188" stamped on them which means they were all manufactured by GENERAL ELECTRIC. All tubes tested good - strong on our Hickok