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Quad, 4 pcs.
CV4024 (=M8162,6060,12AT7WA,E81CC)
4 pieces old-production CV4024 tubes
O-Getter, plates with three side holes, pinched glass base
Labeled with QTL
QTL was a Quality Valve Distributor in the late 1960's in England. QTL branded Sylvania, RCA, Siemens, & Mullard.
NEW, UNUSED, IN ORIGINAL BOXES
TESTED
on RoeTest (computer controlled professional tube
tester),
setting Ua: 250V, Ug1: -2V,
where 100% Ia=10mA and S=5,5mA/V Tube1 (No.05): Ia = 10,30 and 9,61 mA| S= 5,11 and 5,09 mA/V
Tube2 (No.10): Ia = 9,80 and 10,69 mA| S= 4,84 and 5,25 mA/V
Tube3 (No.12): Ia = 9,52 and 10,66 mA| S= 4,69 and 5,19 mA/V
Tube4 (No.13): Ia =
10,78 and 9,70 mA| S= 4,88 and 4,05 mA/V
Extremely high quality audio tubes for hifi/high-end/guitar amplifiers.
Shipping within Europan Union : 17EUR | |