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1 X ECC40 TUBE. USED.
BRAND: ULTRON. 1960s TESLA PRODUCTION.
GREY PLATES, HALO GETTER, COPPER RODS.
AS YOU CAN SEE IN THE 6TH PICTURE, THE MICA IS BROKEN, BUT IT DOES NOT AFFECT ITS FUNCTIONALITY.
TESTED IN FUNKE W20 TUBE TESTER:
MINIMUM GOOD EMISSION = 60% = 5.4mA
11.4/11.7mA EMISSION (EM)
CH165U1
