E80CC/ CV5989/ PHILIPS  BALANCED TUBE GOLD PIN TESTED WITH ROETEST V10 NEW 

                          SPECIAL QUALITY 

ADZAM  was the brand  an important suppliers to government and military contracts.  They did not make valves themselves but they did source high quality valves from manufacturers around the world and ensured they met their high standards.      

                                                      QTY-1

Buyer will receive the exact tube seen in photos.

The buyer will get all data, actual datasheet – test protocol, for each tube.

 The tubes meet datasheet specifications, first the quality tests – filament test, shorts test, gassy test (Ig1, vacuum factor, Ia variation with 1M2 grid series resistor), kathode isolation (leakage to filament), then quantity tests – value of current for plate, kathod, G1, value for transconductance, gain, G1 curve, Ia curve etc., all results for these tests can be seen on te datasheet delivered for each tube.

The buyer will get all data, actual datasheet – test protocol, for each tube.