– British made miniature-tube 12W equivalent of the 6V6, 9-pin base B9A. 6061 – Premium, ruggedized 6BW6. Brimar STC London. 1951 : RMA #965 CV4043 – British made miniature-tube 13.5W equivalent of the 6BW6, 9-pin base B9A. 6AQ5 – slightly lower specifications to the 6V6GT, miniature glass envelope, 7-pin base B7G. Other equivalents of this tube are the CV1862, EL90, 6005, 6095, 6669, 6928, BPM 04, CK-6005, M8249, N7277C5, 6L31 12AQ5 - Same as the 6AQ5, but with different heater ratings. 6P1P (6П1П in Cyrillic.) – 9-pin B9A Noval base Soviet version, not identical characteristics, but very close 6973 – US version, 9 pin Noval base tube, higher plate voltage ratings, intended for high fidelity output applications. 6CM6 – 9 pin Noval base tube, equivalent type primarily intended for vertical deflection amplifiers in television receivers. 12CM6 - Same as the 6CM6, but with different heater ratings. 12AB5 – 9 pin Noval base tube with 12V heater, suitable for automotive receiver applications. Equivalent to the 7061 The pentode EL84/6BQ5 - 9 pin Noval base tube, that although different enough from the 6V6 not to justify rating it as an equivalent, because of its popularity and ready availability, plus having a close enough similarity to make it possible, if bias is altered, adapters have been developed commercially to allow an amplifier designed for 6V6 use, to accept the noval based EL84 tube. Likewise, the inverse adapter is also available. See also List of vacuum tubes KT66 KT88 6L6 6CA7/EL34/KT77 807 Beam tetrode References General references Stokes, John. 70 Years of Radio Tubes and Valves. NY: Vestal Press, 1982. Radio News magazine, March 1937, page 567, "The Radio Workshop." Radio-Craft magazine, October 1937, page 204, "New Tubes for the Radio Experimenter." RMA (Radio Manufacturers Association) "Electron Tube Registration List" Fender Musical Instruments, Amplifier Owners Manual's, 1983. Jim Kelley Amplifiers, Amplifier Owners Manual. Guitar Player Magazine, June 1983. O'Connor, Kevin. T.U.T. Vol.5. Powerpress Publishing, 2004. Receiving Tube Manual, RC-20. RCA corporation. 1964. External links Duncan's Amps TDSL. Tube Collector's Association website. American Radio History website Several tube datasheets. Vacuum tubes Guitar amplification tubes