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

 

This is a Heathkit speaker, Model No. SB 600, primarily used as an external speaker for Ham radio set-ups. It has been tested and is in good working condition. There is some scuffing in the paint. I h

 

record player turntable came off a Morse player has standard plugs will work with many different systems

 

You are bidding on (2) used Amperex 5AR4 GZ34 Full-Wave Rectifier Vacuum Tubes. Please look at pictures carefully as these are the tubes you will receive. Both tubes were tested on our Western Electri

 

Up for auction is a lot of 4 Mullard 6BM8 ECL82 tubes. With grey plates, round getter, made in Great Britain and all have the same date code 0G1 B8D. They have been tested on a TV7-A/U calibrated by D

 

Original West German tubes from 1950s/60s. Made by Siemens Klangfilm for PROFESSIONAL use. See pictures. Tubes come from an old stock.Tested on West German Funke W19S military tube tester with EXCELLE

 

Vintage Panasonic RE-6289 AM FM Tabletop Radio Wood Case. This radio is functional and in great condition. Comes with the box, original plastic wrap, operational instructions, and the purchase receipt

 

You are looking at a Like-New Panasonic 8-Track Stereo Record Tape Deck. This deck has been packed away in the closet for many years, along with the other 8-track tapes. I’ve tested all the tapes (w

 

THIS IS A 180.00 VALUE THE TUBE AT THE TOP LEFT IS A TYPE 6LF6 VERY NICE TUBE. THE OTHER TWO ARE 6KD6 THE ONE EVEN HAS PERFECT PRINT ALL THREE TUBES WILL FUNCTION GREAT. THESE ARE SUPER CLEAN AND IN T

 

1 pair of Jabo KH-55 Laboratory series horns. The horns are a further development of the famous Jabo 50. After more than a year of improvement the company Jabo had the success of constructing the horn