I finally got around to digging out another blocking cap, unfortunately, same
results. It draws more current with more drive, but plate and load controls
have no effect on plate current, grid current remains low....
--- On Sun, 1/27/13, Bob Alexander <realex2@verizon.net> wrote:
From: Bob Alexander <realex2@verizon.net>
Subject: Re: [Amps] 8877 won't load on 80M
To: dick@ny1e.com
Date: Sunday, January 27, 2013, 8:19 PM
On 1/26/2013 5:18 PM, Dick NY1E wrote:
> I have a homebrew 8877 that has been working fine for 12 years on 160 and 40
> thru 10, but I never had an 80M antenna. I finally got one up and the amp
> wont load on 80. It is stable, draws full current, but puts out less than the
> input, I've played around adding and removing padders to the plate and load
> caps. There is no tuned input.Any ideas???Thanks, Dick NY1E
> _______________________________________________
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> Amps@contesting.com
> http://lists.contesting.com/mailman/listinfo/amps
>
Hi Dick,
I have experienced this same problem two times over the years. Once with a
homebrew 8877 and once on a SB220.
The plate blocking capacitor is open on 80 meters. Sounds weird but it really
does happen.
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