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2 X E80L TUBE. NEW OLD STOCK.
BRAND: VALVO. 1950s GEC PRODUCTION.
GREY PLATES, SOLID GETTER, COPPER RODS, PINCHED WAIST, MATCHED PAIR.
TESTED IN FUNKE W20 TUBE TESTER:
MINIMUM GOOD EMISSION = 60% = 18mA
30mA EMISSION (EM)
30mA EMISSION (EM)