The date and type codes are B6H and 9r1 suggesting a 1956 manufacure date. It was destined for the military as it has the military code CV2901 on it. ia (mA) - 3. Data Book Specification.
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Tungsram 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. S = 2.5 mA/V (2.3 = 100 %).
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VALVE TUBE JOB LOT MARKINGS ARE RUBBED BUT IT LOOKS LIKE A CV4004. EF86 AND A 12AT7 BUT MARKINGS ARE RUBBED
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Here we have for sale is a very rare NOS Mullard EF86 6267 tube. I have not seen this before ever on a NOS Mullard tube. Perfect choice for any VOX AC15 or AC30 amp using the EF86 6267. Made in the legendary Blackburn Factory England with tube codes of B0H.
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NOS Mazda closely matched pair EF86's. Upturned dish Getter, Russian made Valves/Vacuum Tubes - AVO Tested very strong. In original boxes. AVO NOS Specs: IA = 3.0 GM = 2.3. Don't use your amp as a circuit breaker, buy tested valves!
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GEC, British Made. NOS, Supplied in White Box.
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SQUARE GETTER 1950s.
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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. Matsushita 6267 (EF86) Power Tube (Single).
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