To: rsgb_lf_group@blacksheep.org
Cc: rsgb_lf_group@yahoogroups.co.uk,
        "Discussion of the Lowfer (US, European, & UK) and MedFer bands"
 <lowfer@mailman.qth.net>,
        owner-rsgb_lf_group@blacksheep.org
References: <22d6c712-43af-3a5d-099e-adb285f086a1@n1bug.com>
 <7d1279b6d1a84b692d281d48901f2b23@xs4all.nl>
From: N1BUG <paul@n1bug.com>
Message-ID: <a6d30d5a-dbb9-de7c-bb78-23e76a77fc58@n1bug.com>
Date: Wed, 8 Nov 2017 08:00:28 -0500
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Subject: Re: LF: PA problem
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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.

73,
Paul N1BUG