I bought a Heathkit SB-200 linear from a local University radio club a couple of years ago. It was my first amplifier and I finally got around to...
Hello Everyone, I am in the market for an HF Amplifier and have found one on eBay I am considering. The Faceplate on said Amp states it is a...
Greetings, I have an issue with my Ameritron 811H. Output used to be 600-700 watts with 65 watts drive into the four Chinese 572B tubes I have in...
The sound you heard could have been because of gas inside the tube. It will usually cause a quick arc sound. The gas is gone now if that happened...
