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 & (

 

One Acoustic Research 2A Tweeter Driver in great working condition, the date stamp looks to be Mar 20 1959.On Dec-30-12 at 18:04:03 PST, seller added the following information: I have other AR parts f

 

I don't have a tester to make a GM measurement on these tubes. These were manufactured in May of 42 and were purchased as Military Surplus in the 60's by a friend of mine. These are being sold AS-IS,

 

Heathkit Electronic Switch Model ID4101 Series 04002 Used Plugs in lights up. Untested. Some light wear on the housing. Seems to work. As-Is No returns Ships US only Ships 2-4 days after payment clear

 

Normal 0 false false false EN-US X-NONE X-NONE 1024x768 You can't beat my initial bid amount for this item! Please review “Payment” and “Shipping/Handling Cost” prior to bidding. If you need a

 

Closely matched pair solid gray plate (no holes) triple getter Tung Sol 6550's. One tube has RCA label, and 2nd tube has TS label. Date codes are 6248 (48th week 1962) and 6352 (52nd week 1963) The Fl

 

Up for auction is an Admiral Bakelite Radio Phonograph, produced during the late 1940's. Model 7RT41-A --- CHASSIS 6L1. Cosmetically, the radio is in great condition. There are no cracks or chips on b

 

These are tested, working tubes, ready to use! A few years back I got into experimenting with old tubes......and there is a sonic difference. I bought up quite a stack of preamp and power tubes for my

 

I am thinning my tube collection as I need money more than tubes at the moment. Here i am selling a two 6l6gc tubes, one RCA black Plate and one Sylvania grey plate. I buy and sell nothing but nos or

 

                                This auction is for a Vintage Sylvania 12AX7A ECC83 7025 Tall Plate Amp Preamp Tube.   It has tall gray plates, a top round getter and is in excellent