1 X EF86 TUBE. 1960s PRODUCTION.
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NOS Tesla EF86 Pentode tubes. All tubes are in great condition, tested and matched using L3-3 tester. The tube with yellow printing has a square getter!
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1960s TOSHIBA PRODUCTION. 2 X EF86 TUBE. 120% EMISSION (EM) 119% TRANSCONDUCTANCE (GM) 0.0mA GAS.
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Tubes test NOS. Tv7 tested TUBES. All our tubes have been tested for. It can be wiped off and destroyed VERY easily. special checking. This test needs sound amplification; hearing listening to noise with headphones would indicate a real disaster inside a tube (THE shorts test WOULD already BE evidence OF THIS).
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TESTED 100% STRONG NOS TUBES ON MY B&K 747 TUBE TESTER.
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High frequency pentode. The steepness of the characteristic. 1.8 ± 0.5 mA / V. Grid current second. not more than 1 mA. Anode current. Cathode limiting current. The power dissipated by the grid is the second, the limiting.
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Used in like new condition
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