[Amps] 8877 won't load on 80M

[n8de at thepoint.net]

Perhaps it is NOT the 'blocking' cap, but the 'loading' cap that is  
switched in on 80m.  If it is not of sufficient capacitance, the amp  
won't tune/load.

73
Don
N8DE


Quoting Dick NY1E <dick at ny1e.com>:

> 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 at verizon.net> wrote:
>
> From: Bob Alexander <realex2 at verizon.net>
> Subject: Re: [Amps] 8877 won't load on 80M
> To: dick at 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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>>
> 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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