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1 X ECL80 TELEFUNEK TUBE. NEW OLD STOCK.
BRAND: TELEFUNKEN. SIEMENS UND HALSKE PRODUCTION.
GREY PLATES, HALO GETTER, 3 MICA.
TESTED IN FUNKE W20 TUBE TESTER:
-TRIODE: MINIMUM GOOD EMISSION = 60% = 4.2mA
7 mA EMISSION (EM)
-PENTODE: MINIMUM GOOD EMISSION = 60% = 14mA
25 mA EMISSION (EM)
