CASIO OR-4 VINTAGE MEMORY RAM PACK. 4 KB CAPACITY. NEW IN ORIGINAL BOX AND MANUALS INCLUDED. THIS RAM PACK WILL UPGRADE YOUR CALCULATOR'S MEMORY CAPACITY. THIS IS A CASIO DISCONTINUED ITEM THAT IS NO

 

This auction is for a Ross Mark-400 battery operated reel to reel tape recorder from the 1960's or 70's. This recorder is portable and lightweight (about 3 pounds). It is made to run off (2) C & (

 

This is for a used pair of RCA Cunningham Type 45 vacuum tubes. ST shape. Engraved bases. Test good.

 

(6) RCA Apollo DR2110 DR2120 DR2100 Numitron Nixie Vacuum Tubes NOS 1 - DR2120 2 - DR2110 Apollo 1 - DR2110 RCA 2 - DR2100 Apollo This unit is from an electronics store that is no longer in business.

 

Up for auction is a Heathkit AA-100 Audio Output Transformer. This transformer has a 6.5K C.T. Primary and a Secondary with 4, 8, and 16 ohm taps. I purchased this transformer years ago on eBay, but n

 

KENWOOD Here is a Kenwood Stereo Double Dual Cassette Deck KX-W8010 It all was tested and works great and is in great condition. Minimal signs of use/wear. Great deal! No need to take the tape out to

 

SCOTCH CLASSIC 1/4" RECORDING TAPE - 10-1/2" NAB METAL REEL - 3600' X 2 Up for auction are 2 reels of Scotch Classic audio recording tape. They are both 3600' in length and include a 10-1/2" metal NAB

 

(This is my fifth listing of these tubes. The first four pairs have already been sold but I have a fifth pair for sale available now. The listing below is accurate for the 5th pair now available. The

 

Bose Model 108787 Spatial Control Receiver Up for auction is a Bose Spatial control receiver model#108787 series 2, SN 151882 14404. These receivers were manufactured in Japan between 1979 - 1984 made

 

Phase Linear 400 power amplifier. This is a great sounding classic amp. It has been in storage and tested before listing. It has not been modified, and both channels sound great. Meter lights are all