Tokyo Hy-Power HL-550FX TR Switching ?
I looked through the old Tokyo Hy-Power HL-550 thread now closed, but no one talked about noise.
I am trying to decide on an amplifier to replace my Ameritron ALS600S which has VERY loud TR switching. I understand the Elecraft KPA500 is quiet but the dealer I plan to return the ALS to doesn't carry the Elecraft. They do carry the Yaesu Quad and the Tokyo Hy-Power HL-550FX. I read many reviews of the Yaesu Quad and many reviewers say it is very noisy. I am mostly concerned with TR noise ( the ALS is so noisy at 13 wpm that even with headphones I can't focus on my CW keying ( nothing worse than one's own sloppy keying )).
So Question #1 is --- Is the Tokyo amp TR switching noisy?? And Question #2 is what about Tokyo amp fan noise?
73, Peter, N4UP ... Active 1963-1981 and 2012-2038
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