Testing 572b tubes. The 572B can handle up to 2400v plate, vs 1500v for the 811. DX Engineering 572B Power Tubes are available for all-purpose Amateur Radio service. The 6146B can be tested at the same settings as a 6146 or 6146A. Also the plate rating is up to 160w vs the 811A's 65w rating. Access the complete data sheet here to ensure proper implementation and maximize the lifespan of your 572B tube. And also how I test to see how far out of balance tubes are in a multi tube linear amplifier. . Jan 16, 2020 · The labels that you see on them are probably indicative of condition; they would be derived by measuring the RF output power of a linear amplifier (probably while running only one tube) and noting how much power was available when the amplifier was driven with suitable driving power for one tube. Run the plate out-of-resonance, and use just enough drive power to obtain 200 mA with the AL572 and AL80B. The 572B is somewhat similar to the 811A, and maybe it can be tested under the same settings, but it won't be a perfect test. To age tubes, run approximately half of rated dissipation for one hour. Max plate current rating is about the same for both tubes, and Mar 6, 2024 · Tubes that test "good" on a tester may still be bad. These 572Bs are a modern version of the venerable vacuum tube that has been around for a long, long time. A 572B can be tested at the same pinout as an 811A. Here I show how I test the emission level in a customers 572b tube. The thing to understand about them is that, generally speaking, a tube that tests "bad" is likely to be bad (but there have been exceptions). This technical resource is invaluable for both design engineers and maintenance technicians working with high-power RF and audio applications. fzvq zjorexb tfwlye wsqajf fhmd ssmcyh kdfg urrgt cstkvd snfx