Valvo EF86 Vacuum Pentode Tube. The EF86 is a high gain pentode designed to amplify low-level audio signals. Date code: D8D (Valvo, Hamburg, Germany, 1958). Tested on AVO 160 With All our tubes are tested for shorts and gas leak.
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Tested on an AVO valve tester, with results shown below. These are badged ‘Marconi’, but have the acid etched date codes of Mullard's Blackburn factory which clearly identifies it as a Mullard tube.
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Valvo EF86 Vacuum Pentode Tube. The EF86 is a high gain pentode designed to amplify low-level audio signals. Date code: D3K2 (Valvo, Hamburg, Germany, 1963). Tested on AVO 160 With All our tubes are tested for shorts and gas leak.
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RARE: 8Yn Production - Diamond Mark on Bottom. All tubes are tested with the Audiophile in mind for SHORTS, GAS, MUTUAL CONDUCTANCE and NOISE (large tube lots are not tested for noise). AT1000 TESTs as NOS.
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EF86 CV2901 Valve Tube. Mullard Foreign. NOS, Supplied in Original Box.
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NOS Mazda EF86. Upturned dish Getter, Russian made Valve/Vacuum Tube - AVO Tested strong. In original box. AVO NOS Specs: IA = 3.0 GM = 2.3. No leaks or shorts / gas, solid base, shiny pins.
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EF86 6CF8, 6J32P, 6267, 6BK8, Z729, 6F22, CV2901. TEST RESULTS. Direct substitute for. Tube 1 2.9 0.6 2.3.
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Adzam EF86 Vacuum Pentode Tube. The EF86 is a high gain pentode designed to amplify low-level audio signals. Tested on AVO 160 With All our tubes are tested for shorts and gas leak. Date code: L7G2 (M.B.L.E., Brussels, Belgium, 1967).
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