[R-390] First time R-390 Owner

[Adam Morehouse]

Well, I tried it out tonight. Brought it up slow on my variac.

It plays pretty well using my Kiwa MAP. I also have a speaker hooked up,
and the audio is very low - unless I turn the BFO on, then its very loud.

The Line Meter also doesn't move unless the BFO is on, and the filters
below 4KC are dead (little bit of static..).

So it's working, but needs some love. Might just be me, but it seemed a lot
easier to tune in some SSB on 40m versus my 390A.




On Tue, Aug 12, 2025 at 8:12 PM David Wise <d44617665 at hotmail.com> wrote:

> I had a snap crackle pop that turned out to be a wire wrapped around a
> sharp corner and shorting.  It was an IF amp screen supply.  Take a close
> look.
> ------------------------------
> *From:* r-390-bounces at mailman.qth.net <r-390-bounces at mailman.qth.net> on
> behalf of Barry <n4buq at knology.net>
> *Sent:* Tuesday, August 12, 2025 3:07 PM
> *To:* Norman Ryan <nnryann at yahoo.com>
> *Cc:* R-390 Mailing List <r-390 at mailman.qth.net>; Adam Morehouse <
> morehouse90 at gmail.com>
> *Subject:* Re: [R-390] First time R-390 Owner
>
> Yes, snap, crackle, and pop is fun when it comes to your breakfast cereal
> - not so much when it comes to your radio.
>
> 73,
> Barry - N4BUQ
>
> > Hi, Adam,
>
> > If the receivers have not been powered up lately, it's a good idea to
> soft-start
> > them with a variac. Hook it up to your radio and gradually increase the
> voltage
> > from zero to no more than, say, 115Volts. Then look and listen for
> anomalies.
>
> > As a matter of course I routinely soft-start my receiver. Like us older
> folks, a
> > gentle start helps a whole lot (nudge nudge wink wink)!
>
> > Have fun!
> > Norman
>
> > On Tue, Aug 12, 2025 at 11:46 AM Barry < [ mailto:n4buq at knology.net
> <n4buq at knology.net> |
> > n4buq at knology.net ] > wrote:
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