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4 X E80F TUBE. NEW OLD STOCK.
BRAND: SIEMENS, VALVO, PHILIPS. 1960s PHILIPS PRODUCTION. ◿9D3 / ◿5G2 / ◿3K1 / ◿1J1 DATE CODES.
GREY PLATES, HALO GETTER, GOLD PIN, MATCHED TRIO + 1 TUBE.
TESTED IN ROEHRENTEST TUBE TESTER:
102% 3.072mA EMISSION (EM) 1.89mA/V TRANSCONDUCTANCE (GM)
104% 3.124mA EMISSION (EM) 2mA/V TRANSCONDUCTANCE (GM)
101% 3.042mA EMISSION (EM) 1.95mA/V TRANSCONDUCTANCE (GM)
71% 2.127mA EMISSION (EM) 1.51mA/V TRANSCONDUCTANCE (GM)
CH167U1
