This Sony SQD 2050 can be hooked up to a number of component stereo systems to give quadraphonic sound. I did some limited testing. The unit powers up. I then set it up with a Heathkit AP1800 preamp r

 

This is a vintage RCA 6kg6a-el509 tube. New old stock in original box made in USA. Tested strong on a Sencore tc-136 tester. Posted with the eBay Android app

 

VINTAGE ZENITH HIGH FIDELITY TUBE RADIO MODEL# H 845 EXCELLENT WORKING CONDITION WOOD CASE HAS SOME SMALL SCRATCHES SOLD AS IS

 

Western Electric oil capacitor two pair 2MF 250V test value：1.89MF 1.94MF 1.93MF 1.93MF All start at $9.99 with no reserve!! Please ask any questions before bidding. Every effort will be made to ans

 

RCA6SL7GT Vacuum Tubes (Pair) These tubes test 140+ and 140+ on our calibrated Eico 667 dynamic tester (passing range is 80-140). Those are excellent scores on this tester and comparable to scores for

 

BRIMAR 12AX7 ECC83 BRITISH OLD STOCK BOXED TESTED PAIR OF VINTAGE VALVES TUBES LONG BLACK ANODE PLATES SQUARE GETTERS BRIMAR BOXS TESTED STRONG ON MY PRECISION 912 AND B&K 747 TUBE TESTERS TESTED

 

Crown D-60 amplifier in very good used condition. Has some rack rash present, and one rack ear seems a little bent. Not bad, but notable. The power switch is a little tricky, but once on works OK. I h

 

3 pcs Eimac 100TH ham transmission triodes DHT This auction is for 3pcs Eimac 100TH -2x NOS in the box -1x without box, looks new, but don`t know for sure All tubes are inspected and tested in a worki

 

GoodwillNNE Store PLEASE NOTE: eBay wants its own product details included within the listing. However, we cannot guarantee that eBays product details match the auction’s contents and condit

 

You are buying a: ELECTROHOME Short Gray Plate BIG O Getter 12AX7 / ECC83 Tube Logo worn as pictured made in Canada All tubes are tested for filament, leakage, Dynamic Mutual Conductance and emission