Vintage Quad 44 Control Unit Preamp Original Quad 44 "control unit" (preamp), circa 1970s. It powers on and operates, but with a loud hum in the left channel. Otherwise in good working condition, very

 

This vintage Stancor Interstage Transformer A-63-C is a rare and valuable item. It is used but still completely ready and wired. It is in its original box. For more vintage goods, please visit our eBa

 

This auction is for a Vintage Tung-Sol 12AX7A Preamp Tube. It has tall gray plates, a top round getter and is in good clean condition. This is a vintage MADE IN USA tube by TUNG-SOL with the code 322R

 

Offered is an HP 82483A Survey Pac for the HP 71 calculator.  The module comes with an original hard copy manual that is in very good condition.  The module has been tested and works.

 

You are bidding on a vintage Marantz PMD 430 Portable stereo 3 head cassette recorder. This unit is fully functional the heads have been cleaned and there is no visible wear or scratches on case. Unit

 

MALLORY FP444.8 CAPACITOR TYPE FP 30-30-20-20 MFD450-450-450-450 VDCVK 85 degrees C NOT SURE IF IT'S NEW OR USED. MONEY BACK IF IT DOES NOT WORK. (you pay return postage). FREE SHIPPING

 

You are bidding on a nice clean and strong ST style rectifier tube. The ribbed plates allow more power, less voltage drop. Both sides show excellent strength on my Precision tube tester. Everything I

 

One pair TELEFUNKEN ECC83 ribbed plates 12AX7 Data Matched ! WORLDWIDE SHIPPING ! 100% HAPPY CUSTOMERS SINCE 1999. 2pc ECC83 TELEFUNKEN Diamond series Ribbed plates Both SAME serial numbers ! very rar

 

R&A 12 Inch Speaker These items came from a large collection of material the owner acquired over the years. Condition: Tested crackle sound present, good physical condition. Has small repair to th

 

This auction is for a very desirable pair of Duovac 842 power triode vacuum tubes. This pair is genuine NOS in original factory boxes. As you can see from the photos, the boxes are rather beat up with