Here are 37, Good Used, RCA 6SN7GTB tubes. These are the " Coin Base" style. They have been checked in a working Baldwin tone generator, that gives a functionality test ( not an audio quality test ).

 

DATAMATH CALCULATOR MUSEUM sells on eBay ELITE model 7001SR Kaufhof Warenmarkt AG, a famous German department store founded already in 1846, sold in the 1970s very interesting electronic calculators u

 

This calculator is in like new shape, box is a little worn but manual and slip case are good.

 

Dimensions: 5 5/16" x 2 1.16" Weight: @ 2 1/2oz. We offer an used TUNG-SOL JAN 5998 Vacuum Tube, a twin triode tube made by Tung-Sol for Chatham Electric. This is a clean military-grade tube with blac

 

A pair of Telefunken 12AX7 tubes. Both test good. Thanks for looking. pskaudio store

 

Used tubes, tested and matched in pairs. National branded 6CA7/EL34, made in East Germany by RFT, who also made Siemens tubes. Both pairs are closely matched to each other, and could be considered a m

 

YOU ARE BIDDING ON A VINTAGE AKAI TERECORDER REEL TO REEL TAPE RECORDER MODEL # 22-40 AND TWO SEPERATE INTERLOCKING STEREOPHONIC SOUND SPEAKERS. ITEM IS USED AND DOES HOME SOME COSMETIC ISSUES, STAINS

 

Up for auction is this Heathkit model A-7 mono amplifier. This item came from a large estate sale and the working condition is unknown. I did a power on test and all tubes warmed up normally. Units' s

 

Technics SL - 1500 MK 2Direct DriveQuartz18 " - Wide15 " - Deep6 " - Tall28 - LbsN-46 - CartridgeWhat we are looking at today is a very fine Technics TurntableTrue Craftsmanship and quality on this on

 

1970's Pocketronic II Calculator Missing power cord Serial # 115047 Original thermal tape cartridge, black case, serial card and box. NEVER USED Excellent condition. Each previous sale was complete. S