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

 

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

 

You are bidding for a Vintage Pioneer Receiver Model SX-424. Very small indent on top of wood cabinet. Works Good. Excellent Condition. I try to describe my items as best as possible.If you are not su

 

Marantz SLT 12 Turntable with linear tracking tone arm Powers up and runs Everything in good shapeLooks goodNo cartridge includedNote: it's large and a bit heavy, so if you're bidding from China/Japan

 

Two NOS NIB RCA 6AS7 G Audio Vacuum Tubes in pristine condition, made in the USA. The 6AS7 is a dual power triode similar to the type 6080. This tube type was used in audio amplifiers, radio, military

 

Pair Awesome KEN-RAD VT-231 6SN7GT Black Glass Tubes Match TV-7D/U Reading - 90/96 & 72/110; Min - 50/50 Made in USA by KEN-RAD You are bidding on a Pair Awesome KEN-RAD VT-231 6SN7GT Black Glass

 

Vintage Cornell Dubilier BF-60 Capacitance Resistance Bridge Capacitance-Resistance Bridge, Type BF-60 Made by Cornell-Dubilier w/"tuning eye" tube CORNEL- DUBILIER CAPACITANCE- RESISTANCE BRIDGE MODE

 

Sylvania Tung-Sol Type 26 Radio Amp Vacuum Tube Lot of 2 Tested GoodTesting was done by local vintage radio shop on a Jackson 648S tube tester. All tubes tested 84% or better The min. is at 70%. I acc

 

made in Hungary Super Low Noise & micro phonics; very quiet excellent tubes smooth and air; warm yet great dynamics

 

This is a single lot of four reels of TDK Audua LB-1800 tape for reel to reel recorders. This is the stuff that the professional labs used, and is the tape that most manufacturers used when calibratin