Eric - I think you have a similar response but you need to look at or talk to
Harbach..he's got good component's to rebuild your power supply, which from a
happy owner standpoint, looks like you could use a new power supply....Larry
--- KA2YKC@aol.com wrote:
>
>
> I just picked up an SB200 from an estate sale that looks like it sat in a
> basement for 3 years!
>
>
> Anyway, upon firing it up, it appears to put out 500w into the Bird on a
> dummy load. After about 3 minutes of use, the HV bleeder resistors start to
> smoke from overheating. If I shut the amp off and let it cool, it will do the
>
> same again after a brief period. HV looks good on the meter, and it RF-wise
> it it ok.
>
> Is it possible that if the caps in the HV p.s. are leaky or bad, the result
> would be a higher - than - normal dissipation through the resistors ?
>
> The caps are the old-looking paper style. Anyone have a recommendatio for
> locating 6 new caps, and their specs for this amp ? Unfortunately, I don't
> have a schematic for the am. Can anyone herlp with a copy of the schematic,
> either on a web site or an emailed JPEG GIF etc..
>
>
> Thanks in advance for the input....
>
>
>
> Eric
> KK2ED
>
>
>
> --
> FAQ on WWW: http://www.contesting.com/ampsfaq.html
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> Problems: owner-amps@contesting.com
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>
>
=====
May your days be full of sunshine and good thoughts fill your head.
From: Larry Knapp, KC8JX, St. Joseph, Mi 49085
Best 73's
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--
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