[R-390] Dial off 50KHz?

[Larry H]

Dave,  You're fast, wow.

Since the frequency discrepancy is also above 8 MH, that rules out the 1st
osc.  I assume you are using the same 2nd xtal osc, so it must be caused by
the PTO shaft moving a little.  50kc is exactly a half turn.

Regards, Larry

On Sun, Oct 7, 2018 at 4:10 PM dog <agfa at hughes.net> wrote:

> I put the original RF section back in after finding the cap I left out
> that makes the calib osc work. So now the calib osc works. But I'm not
> sure what I did, other than I put the other RF section I had in, it
> didn't work, so I removed it and after I fixed the cap in the old RF
> section, now the dial is off by 50KHz reading low. Actual 10.1 reads
> 10.05 so the 10M band shows up below 10.1. I always turn the PTO and
> dial to far left like the book says and I'm wondering if I got it off
> somehow? Should I try to turn the PTO maybe 1/2 a turn, I'm not sure
> what 50KHz is in relation to a half turn on the PTO? I guess I could
> figure it out. At least the calibrator is working now. Maybe I can get
> rid of this thing.
>
> I've found it easiest to turn the RX upside down to get the Oldham
> coupler and spring back in. And loosen up the PTO. I can get the RF
> section in and out in about a half hour now with all the cables and screws.
>
> Dave
> ______________________________________________________________
> R-390 mailing list
> Home: http://mailman.qth.net/mailman/listinfo/r-390
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:R-390 at mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>