[Heathkit] SB200 Input

[Greg Mijal]

It sounds like you need to peak the input band coils. Check your manual for 
technique.
If it is the coils, your high loading problem should disappear too.
73's
Greg
WA7LYO
Kinston NC
----- Original Message ----- 
From: "Greg McConaughey" <aml5 at mondoserver.org>
To: <heathkit at mailman.qth.net>
Sent: Friday, March 12, 2010 10:40 AM
Subject: [Heathkit] SB200 Input


> Hey all -
>
> I've been lurking here for a while, and finally need to submit a question
> for consideration. Here's the deal:
>
> I have an SB200, with newer tubes, Harbach P/S rebuild, softstart and
> softkey mods. Power output and stability are good. The problem I have is
> with the match to the exciter on the input. On 10,20,40,80 meters the SWR
> on the input seems reasonable. On 15m however, the match is so bad that I
> have to use a tuner between the radio and the amp to keep the radio from
> folding back power.
>
> Also, on 40 and 80m, I have to crank the Load control fully
> counter-clockwise to get the amp to load up, and it seems like I could use
> a little more after the control hits the stop.
>
> I'm sure it's two different issues. Where should I look first?
>
> Thanks in advance,
> Greg Mc, K7GLM
>
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