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Re: Amplifier Talk- Communications Concepts

 

The WA2EBY amp has been the staple around the bitx community. I am bored with the IRF510s now. I just bought a triplet of 811a tubes. I am mortified at the thought of 1000v dc in the shack...


On Fri 13 Sep, 2019, 10:03 PM iz oos, <and2oosiz2@...> wrote:

The AN762-140 should be a good amplifier, I think it was described so in the ARRL 2010 Handbook. It needs lowpass filters like those Communication Concepts sells. It seems not overly complex to build.


Il 13/set/2019 07:03, "Mark - N7EKU" <n7eku@...> ha scritto:
Hi Jeff,

Well that one really is just a CB amp -- the biasing not linear and uses only a diode (a design for CW and FM use) and the output transformer design dated (leading to low efficiency).? The AN762-140 also low power in/140W out but is a much better design (with OK IMD specs) and $4 cheaper!?

73,


Mark.

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