The first Portable Calculator commercially produced. Available in 1970. Based on Texas Instruments chip developed at Cal Tech, Pasadena (Dr. Sheldon Cooper?) for more information: http://www.vintageca

 

Important!! Shipping to USA only! Weltron vintage Space Helmet Style 8 Track Stereo Tape Player, AM/FM MPX Radio, 25 transistor 13 diode. This all white A/C-D/C unit is in beautiful condition. Face pl

 

This little red record player is dated Nov. 1978 and is still in its original box and has never been used. Like new except for the foam on top of the turntable that is disintegrating due to age but co

 

I am selling a pair of vintage Pioneer CS-63DX speakers. For your consideration is a set of vintage Pioneer CS-63DX speakers in very fine condition. The speakers weigh 63 pounds each and are 28 1/2" t

 

This is the manual for a Heathkit Williamson Type WA-1 amplifier. It is old, stained, and yellowed, but it is still in decent shape. No rip or tears. 32 pages with schematics, parts list, and step by

 

Yamaha Orthodynamic YH-100 in very good shape. No cracks on the band. No broken parts. Pads are not cracking or splitting. Cable looks like new. Sound is great! These are the most realistic headphones

 

this is a VINTAGE 60s CRAIG 212 PORTABLE REEL TO REEL TAPE RECORDER W/ MICROPHONE FROM JAPAN. It is in working condition, but is a little sluggish. I don't have tape or another reel to fully test it,

 

4 6X4 EZ90 EZ 90 TUBES ~ MULLARD - TUNG-SOL - GE Tested on my calibrated TV-7D/U tube tester for gas & shorts. ALL tested between 58 and 62 Minimum......40 on a TV-7 Please check pictures "Get It

 

~ITEM SPECIFICS~ 0000000000: 0000000000 0000000000: 0000000000 0000000000: 0000000000 0000000000: 0000000000 0000000000: 0000000000 0000000000: 0000000000 0000000000: 0000000000 0000000000: 0000000000

 

DATAMATH CALCULATOR MUSEUM sells on eBay Texas Instruments Bossard Bolted Joint Calculator - FRANKEN TI-58X Introduced together with the legendary TI-59, the TI-58 introduced a novelity, the Solid Sta