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1 X ECC40 TUBE. NEW OLD STOCK.
BRAND: PHILIPS-MINIWATT. 1950s PHILIPS PROD.
GREY PLATES, SOLID GETTER, COPPER RODS, RED LOGO, VERY RARE AND UNIQUE TUBE.
TESTED IN FUNKE W20 TUBE TESTER:
MINIMUM GOOD EMISSION = 60% = 5.4mA
9.8/8.8mA EMISSION (EM)
CH165U1