[R-390] A lesson learned and two questions

[Larry H]

John, Can't speak to most of your questions, but there is a tool to search
the archives.   It's here:
https://w9wze.net/ReflectorSearch/SearchReflectorForm.php

It was out of commission for many months and I am glad it's back.   Be
patient, the results take a minute or so.

Regards, Larry

On Tue, May 28, 2019 at 2:48 PM <jgedde at optonline.net> wrote:

> Lesson learned…  Don’t accidentally reverse the connectors for the PTO and
> the Calibration Oscillator (J115 and J116) on a R-390 (not A).  If you do,
> it’ll kill the PTO tube.  The connectors are side by side and are identical
> – not keyed.  Not a great design practice FWIW.
>
>
>
> And now my first question: on a R390 (not A) is it normal for the ZERO SET
> knob and shaft to be able to completely unscrew out of the radio?
>
>
>
> Are there “pearls” for the R390?  Where are they?  Is there a way to
> search the R390 archives?
>
>
>
> OK, OK that was four questions.  Two for one sale  😊
>
>
>
> Cheers!
>
> John
>
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