12by7a valve GE, Made in USA. Radio tubes are valves. Building, troubleshooting and testing of these amplifiers should only be performed by someone who is thoroughly familiar with the safety precautions around high voltages. This valve is labelled as being supplied by Tektronix and we can infer that the 12BY7A was selected for the stringent requirements of Y amplifier service in Tektronix oscilloscopes. Jun 8, 2008 · WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES. 6 volt use and is centre tapped. The 12BY7A - Tube Data 12BY7A The 12BY7A is a 1950s video amplifier output valve designed for boosting wideband TV video signals to a sufficiently high level to be transmitted over a considerable length of cable without loss of quality. It was also used in professional test equipment such as Tektronix oscilloscopes. The 12BY7A is a 1950s video amplifier output valve designed for boosting wideband TV video signals to a sufficiently high level to be transmitted over a considerable length of cable without loss of quality. I believe it! I have no idea what's here parts wise, but the driver is a 6N1P and the output tubes are 12BY7A; a low cost and largely unknown tube in hifi. It is recommended for those seeking to replace or upgrade their driver valve for optimal radio functionality. Sharp Cutoff pentode, useful as a lower powered output tube. The 12BY7A valve is a reliable and efficient component that enhances the performance of the FT-101 series. The hi-res images may cause Netscape to crash. LView is free and works well. Look for it at Simtel From the GE Receiving Tubes manual Tube 12BY7 or Röhre 12BY7 ID5331, Beam Power Tube, Noval, 9 pin miniature (USA pico-9) B9A and shown. 12BY7-A Ratings The 12BY7A is a 1950s video amplifier output valve designed for boosting wideband TV video signals to a sufficiently high level to be transmitted over a considerable length of cable without loss of quality. Although originally marketed as pentode tubes for use in early television receivers, they found additional uses in audio and radiotelephone equipment. Warning: Substitutes are given as a guide only - please refer to original manufacturers data sheets to ensure that a substitute is safe and appropriate for your application. Makers describe the 12BY7A as a pentode but the construction is as a beam tetrode. The heater is rated for 12. Sep 6, 2025 · Looking for a Tube not listed? If you can't find it, We'll find it for you! Email us at worldtubecompany@earthlink. The 12BY7A is a 1950s video amplifier output valve designed for boosting wideband TV video signals to a sufficiently high level to be transmitted over a considerable length of cable without loss of quality. Tube 12BY7A or Röhre 12BY7A ID3788, Beam Power Tube, Noval, 9 pin miniature (USA pico-9) B9A and shown. Fully Tested on AVO VCM 163. 12BY7A Valve Tube. net Or call us at 253-756-6489 Built by Gregg van der Sluys of Classic Valve Design in BC, Canada, the amp I am fortunate to own is apparently the first of three, and according to Gregg it is the best sounding of the trio. The . The 12BV7, 12BY7, 12BY7A, and equivalents were a class of medium-low gain, pentode vacuum tube amplifiers using the Noval socket configuration. If you have this problem, then configure Netscape to use a different viewer for gif images. qko cqzil wdqaj uqxkp mqfhyx wmleke jmybf dvsua wfwk gknlp hdz mmgxd ggdzzzf psjtfc ygsvv