[R-390] Help with R-392

Thu, 22 Jan 2004 21:27:51 -0800

Ronnie,
For what it's worth, 3 amps sounds like about the right current draw. Both
of mine draw about 2.6 amps; one fluctuates between 2.6 and 3 as the
calibrator crystal oven cycles (I assume). So you must not have any bad
shorts or opens in the power string. We'll keep hoping for just a bad tube
or dirty contact. Oh- check the ant. relay just behind the front panel for
good contacts. With the contacts open, as when it's energized on standby, I
can barely hear the local 50KW bc station at 680kHz. Nice sheilding...
And I gave up on AC power supplies after trying three. They all radiated RF
noise, mostly below 8 Mhz, so I got a couple of big gel cells at a hamfest
and a "wheelchair battery charger" through the internet.

Good luck,
Bruce

----- Original Message ----- 
From: "Ronnie Davis" <[email protected]>
To: "R-390@Mailman. Qth. Net" <[email protected]>
Sent: Wednesday, January 21, 2004 8:53 PM
Subject: [R-390] Help with R-392

> Hello again
> Well I ended up with a good condition R-392. Has a couple problems that I
> will have to work out before im happy. One is the coupler disk that
changes
> the filters is missing. Does anyone know where I can get the little
coupler?
> Looks about like the VFO coupler on the R-390A but a lot smaller. Right
now
> its in the 8 kc position but I would like to be able to change it. Also,
rig
> is powering up fine but have not heard any stations yet? Just a static,
> going to clean the contacts on all the tubes and see if that helps. It is
> alot tighter in the R-392 than it is in the old R-390A. So if I do any cap
> replacements in this thing it will be a real job hi. Anyone know of a good
> cheap PS to run the R-392 on? My PS is struggling to provide the 28 volts
at
> 3 amps. Anyone that can help with the R-392 please do, and I will sure
> appreciate it. Oh yea, the second R-390A is getting a Recap kit from
Walter
> now. So I have two radios on the bench at the same time.
> Thanks
> Ronnie
>
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