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Re: LF: PA problem

To: [email protected]
Subject: Re: LF: PA problem
From: N1BUG <[email protected]>
Date: Wed, 8 Nov 2017 08:00:28 -0500
Cc: [email protected], "Discussion of the Lowfer (US, European, & UK) and MedFer bands" <[email protected]>, [email protected]
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References: <[email protected]> <[email protected]>
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There were many replies to my plea for help. I won't reply to all individually but every reply is much appreciated! Thank you all!
To respond to a few things:

I do not need a linear amp. I spent much time looking for a medium power (50W or so) class E amp but could not find any designs. There are many 250W and up class D circuits around but they all get out of my budget for this year. I found this and since it was affordable I decided to give it a try. I knew it was risky but better to try something than do nothing at all.
Capacitors in the LPFs are all WIMA FKP. I did not feel any heating.
Capacitors in the amp are also FKP.
I'm afraid I have very little experience or confidence in working
with SSPAs of any type. I have designed and built many a tube PA up
to 1500W at HF through UHF but working with FETs is all new to me.
I have to spend today working on a tower but will return to this
project and try some of the suggestions I received as soon as possible.
Paul N1BUG

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