DATAMATH CALCULATOR MUSEUM sells on eBay Texas Instruments TI-54 - NEW-IN-BOX Texas Instruments introduced in 1981 with the TI-54 the first calculator performing complex calculations. The technology i

 

You are bidding on 27 rare, original, 7", reel to reel, tapes. The tapes are mostly the AMPEX brand with a few exceptions. The tapes are in very good, if not excellent condition. (One of the tapes has

 

Large lot of vintage electrical parts and vacuum tubes. Please note that some of the tubes do not match what is written on the box. Miscellaneous parts. Please feel free to ask any questions and I wil

 

This is in great condition. It sounds great and is a really nice boombox. The only thing is, I believe it needs a belt for the tape deck. Radio wise, am and fm have great signal quality and sound grea

 

Rare Vintage Philco 6E5 "Magic Eye" Radio Vacuum Tube NOS NIB. Still sealed in box. Untested. Years ago I purchased the stock from a TV & Radio repair shop that had closed. The majority of the tub

 

MANUFACTURER : Mullard Blackburn UK / Valvo Label TYP : 5AR4 GZ34 Rectifier Tube O Getters QTY.: 2 CONDITION : New Old Stock CODE # : f32 B5F3 on both TEST EQUIPMENT : Funke W19 Cards 514 EMISSIONS (5

 

RCA 6A3 (WITH PHILCO LOGO) BLACK ANODE PLATE PAIR OF OLD STOCK BOXED USA MADE VINTAGE VALVES MADE IN USA BLACK ANODE PLATES RCA BOXS METAL FOIL GETTER TESTED STRONG ON MY PRECISION 912 TUBE TESTER FRE

 

You will receive 15 feet of solder .040 dia nassau 7424

 

Old Bakelite and leather headphones. PL-354 1/4" jack, but it's shorter than modern ones so I can't test them. Sold as is, no returns. Good luck! Posted with eBay Mobile Posted with eBay Mobile

 

This is a small single ended output transformer for matching an output tube such as a 50L6 to a voice coil. The plate primary impedance can be selected as 1500-2000-2500 Ohms and the secondary impedan