[R-390] R-390A Restoration Progress (at last)

[Joe Foley]

You really, really, really need to download the Y2K Manual and RTFM (Read The Fine Manual) You'll be very impressed with all the work that went into it.

Joe




--- On Mon, 12/15/08, Richard W. Solomon <w1ksz at earthlink.net> wrote:

> From: Richard W. Solomon <w1ksz at earthlink.net>
> Subject: [R-390] R-390A Restoration Progress (at last)
> To: R-390 at mailman.qth.net
> Date: Monday, December 15, 2008, 8:30 PM
> I rewire the AC input to eliminate the RF Filter. Radio
> turns on
> and makes noise. AF Gain control scratchiness eliminated by
> just
> running pot back and forth several times.
> 
> I can hear WWV on 10 Mc (yeah !!) with a short wire, but as
> I
> cycle through the B/W positions I notice the 4 Kc position
> has
> a marked reduction in level (audio out). I removed the
> module
> and gave the switch a shot of De-Oxit and I'll try it
> again tomorrow.
> 
> Hopefully the Mechanical Filter is OK, but what are the
> odds that
> one or both Silver Micas are bad ? Would you recommend I
> just replace
> both of them ? I suppose if I replace them both and still
> have the
> lower level then the Filter must be kaput. I don't see
> any need for
> 4 Kc anyway !! Too narrow for AM.
> 
> Comments ...
> 
> 73, Dick, W1KSZ
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