[Hammarlund] Re-Capping HQ-180A - Some Questions

[Steve Reed]

Some good news!  I found what appears to be the right manual for my HQ-180A
on eBay.  The seller verified that it includes a diagram with the 80/40/20
filter cap.  Will advise more after I get the diagram.



73, Steve, KW4H

On Sat, Jul 13, 2019 at 2:33 PM Steve Reed <kw4h at arrl.net> wrote:

> Hi all -- I've got a HQ-180A here and and started the re-capping process.
> The replacement power supply filter capacitor that I ordered from
> Hayseedhamfest is rated: 65-45-45 (at 450v) and then there's a fourth pin
> on the can rated 45mfd at 50v.  The ACTUAL filter capacitor on my HQ-180A,
> however, is rated 80-40-20 (450v) and there is no fourth pin.  To add to
> the confusion (and just to make it hard for me to trace a lot of this out),
> the only manual I have for a HQ-180A identifies the filter capacitor (C82),
> as a 60-40-40-40 at 450v.  So this is wandering all over the place.  So, a
> couple of questions:
> 1 - Is that Hayseedhamfest cap a direct replacement regardless of the
> difference in the ratings?
> 2 - Does anyone have a schematic for the version of the HQ-180A I have?  I
> realize there were many different production versions.
>
> Thanks - Steve, KW4H
>