Here we have a RCA 2A3 audio vacuum tube that has been fully tested on a calibrated TV-7B/U for mutual conductance, shorts, and gasses. This tube tests at a strong 72, where 38 is considered minimum g

 

5 PHILIPS JAN 5687-WB Black Plates O-Getter TUBES In boxes, tested. Check out my other items! USPS Small Box Priority shipping Worldwide. No returns. Posted with eBay Mobile

 

(6) RCA Apollo DR2110 DR2120 DR2100 Numitron Nixie Vacuum Tubes NOS 1 - DR2120 2 - DR2110 Apollo 1 - DR2110 RCA 2 - DR2100 Apollo This unit is from an electronics store that is no longer in business.

 

4x VALVO EL 84 - EL84 tested all 40mA 6BQ5 all tubes are tested and with the Telefunken diamond on the tube button 40mA40mA40mA40mA shipping free world wide we have many other tubes,speakers,tube ampl

 

Vintage Sylvania 6E5 Magic Eye Tube Both sides of the eye test GOODALSO TESTED GOOD FOR GAS, QUALITY, CONTINUITY, SHORTS AND FILAMENTI USE A CALIBRATED HICKOK 6000 tube tester - see my feedback and be

 

Advent Legacy Tower Speakers 10” Woofers 85A-26 / Tweeters 85C00017 New Foam Surrounds CAUTION: The eBay’s Shipping Cost you see is ONE speaker, please read my full listing description carefully b

 

You are bidding are a vintage Wollensak 3M magnetic reel to reel tape recorder. This was once property of Mount Carmel High School in Chicago. It is inscribed on the side of the item. Item powers up a

 

Here are good used RCA Radiotron UX-281 tubes .These tubes have the black plates and the same construction inside. . I tested the tubes on my I-177B Mutual Conductance Tube tester and they both read a

 

Valvo Hamburg made 6HU8 amplifier tube.  Made in Western Germany coded D1F4 (good tube) and D1F3 (bad tube).  Came in a Fisher console (A19) that had been "fixed".   Dual pentode tube!  Reject poi

 

Calculator works perfectly with no scratches. Winning bidder gets the calculator, a non working card reader, Real Estate ROM, Financial ROM, Stat1 ROM, keyboard overlay, charger, non working and broke