CROWN D150A POWER AMP(SN:029072)This item has been used previously. This item may have some signs of cosmetic wear, but is fully operational and functions as intended. Item tested and works good. Rack

 

Up for auction is an unused, original Nagra IV Service Manual. This is an original Manual printed in Switzerland. Manual is in excellent unused condition. Also included with this auction is a Nagra IV

 

You are buying a: Magnavox Long Gray Plate O Getter 12AX7 / ECC83 TubeLogo worn as pictured made in USA All tubes are tested for filament, leakage, Dynamic Mutual Conductance and emission value. Tubes

 

Very nice vintage amp. Untested but everything from this estate has worked. Should be brought up slowly. Very nice build and shape.

 

Welcome to The Technology Surplus Depot Vintage Pioneer SX-3700 AM FM Stereo Radio This receiver was powered on and tested to output AM FM radio. The output seemed slightly inconsistent, volume-wise,

 

Here is a nice pair of Allegro 2500 vintage speakers in good working condition all drivers in both speakers are in good shape with some scratches on the body all over but still in a good looking condi

 

Tubes tested good

 

One Metal Base Sylvania 6SN7 GT Audio Receiver Guitar Vacuum Tube made in the USA in the 40s. This preamp tube has black T plates (3 stitches), copper posts, metal base collar, and a top getter flash.

 

ECC83 TUNGSRAM TUBES FOIL - GETTER / Dual Support TESTED PAIR Ia1 Ia2 S1 S2 mA mA mA/V mA/V ECC83 1.3 1.3 1.4 1.4 ECC83 1.2 1.2 1.6 1.7 Measured at catalogue parameters Ua = 250V & Ug1 = -2V where

 

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