This is ONE WONDERFUL, TOTAL MINT and ENOUGH RARE, TELEFUNKEN branded, COUPLE of single TRIODE EC8010 = 8556 NOS/NIB made by SIEMENS-RöHRE (from bulk-carton and boxed), genuine made in GERMANY. Super

 

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

 

In excellent working condition, cosmetically it is good, but on the top there look to be some tape residue spots, looks like someone may have chipped a little of the brown paint when trying to remove

 

vintage quenched spark plate 5 inches long and 3.5 inches wide and 3/4 all I know is its from engineering lab and I found the drawing in a folder that deals with tesla coils ,I have no idea why there

 

RF band pre-selection and separate RF gain control Triple conversion, 55 MHz, 2,5 MHz, 455 kHz Digital display, 1 kHz AM, USB/LSB, CW, 10 kHz - 30 MHz Selectivity: -6 dB/ -60 dB Sensitivity: AM 3,4 -

 

In surprisingly nice condition. It runs but auto function of tonearm not working so I think it needs a clean and lube.Pickering P/AC-1 cartridge and needle. Powered by eBay Turbo ListerThe free listin

 

Up for auction is a lot of 5 used 12AX7’s from various makers, Sylvania, Bell & Howell, TUNG – SOL, one unmarked and one I cannot make out the maker. These have been tested and all test good.

 

Up for auction is a Vintage Akai X-1810 Reel to Reel Tape & 8-Track Player X1810. This has been given a general testing by a trained professional and this is what was found. Missing reel retainer

 

cloudaudio Store Marantz aluminum headshell. Very good condition. Has two very minor scratches (photo 2)

 

This auction is for a vintage Panasonic Stereo Music System. The system has a cassette player, turntable and Am/Fm stereo The system is in very nice condition and has been tested and works great. The