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AndyWright · 19th Sep 2021, 12:01 pm

There is also a complete high level AM modulator available on ebay from time to time. It's from the PTR175 transmitter, and has 2 X 2E26 valves in it complete with mod transformer and audio preamp.

Andy

19th Sep 2021, 12:01 pm	#24
AndyWright Tetrode Join Date: Feb 2012 Location: Bishop Auckland, County Durham, UK. Posts: 92	Re: AM Conversion for CW TX There is also a complete high level AM modulator available on ebay from time to time. It's from the PTR175 transmitter, and has 2 X 2E26 valves in it complete with mod transformer and audio preamp. Andy