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

 

Yamaha Portasound Voice Bank PSS-270 is in good condition. It does have some minor scratches but otherwise in great condition. It works great and runs either on AC adapter or C batteries. It comes wit

 

This is a Thorens-manufactured tripping device to add automatic lift of a manual turntable's tonearm at the end of play. Pretty simple really--stick on the base of the turntable (the adhesive backed t

 

1 SONY CHF30(1980)CASSETTE TAPE NEW AND SEALED MADE IN JAPAN 　 Shipment:Registered Airmail:US$7.00(Ship to:USA,Europe,Russia) I combined shipping,Each subsequent cassette tape add US$2.50 Notice:shi

 

These speakers have only been up for auction once in the last 3 years. The serial number is in the 10000s which makes this one of the hardest to find models Fisher ever put out. These were made by Fis

 

This is a vintage Western Electric model 10D telephone output speaker driver....tested as good.... S/H is $21.75 in continental 48 USA.......e-mail otherwise for a quote BEFORE you bid. I accept PAYPA

 

Up for auction is a Vintage Marantz Model Twenty Eight Sterophonic Receiver This Marantz Model Twenty Eight was acquired previously owned at our store in working condition. Cosmetically it does show s

 

Up for auction is this Telefunken 12AX7 vacuum tube in super nice condition. This tube was tested on a Sencore TC-31 tube tester and it tested good with no leaks or shorts. This tube was made in Germa

 

These are 2 vintage tall grey plate 7025 / 12AX7 dual triode audio tubes with top halo getter. one has red print with 7025 also on envelope, the other tube has yellow print but all is rubbed off excep

 

Here is a beautiful, well-made record weight made by Mapleshade. The system consists of a heavy brass ring, a wooden centering device, and a 10" translucent disk used to couple your vinyl album to the