[R-390] New to Group

[Joe Foley]

Oopsage!
 
That green gear is ONLY on the R-390 not on the R-390A, but still, don't remove the front panel yet.  You won't need to anyway, ... lots of work can be done first.
 
Clean, clean, clean.
 
Joe
 
 


--- On Thu, 3/7/13, Sherry Guttery <comcents at bellsouth.net> wrote:


From: Sherry Guttery <comcents at bellsouth.net>
Subject: Re: [R-390] New to Group
To: "Joe Foley" <redmenaced at yahoo.com>
Cc: r-390 at mailman.qth.net
Date: Thursday, March 7, 2013, 1:11 AM


On 3/6/2013 6:20 PM, Joe Foley wrote:
> Lucky you!
> 
> Open it up and do some cleaning, that will familiarize you with a lot of the mechanical parts.  Get a manual, or at least the on-line version of one, and keep it handy while you work.
> 
> One important first step is to tighten all of the ground connections, even the tube socket bolts.  Clean all of the plug-in connectors, tube pins, and such.  Work the controls back and forth to clean the sliding contacts.  Use De-oxit on all such contacts, but sparingly.  Don't let it soak into the switch wafers.
> 
> Work on that type of stuff and then we'll work on a mechanical tune-up.
> 
> Joe
> 
> --- On Wed, 3/6/13, Wes Bolin <k5apl at yahoo.com> wrote:
> 
> From: Wes Bolin <k5apl at yahoo.com>
> Subject: [R-390] New to Group
> To: "r-390 at mailman.qth.net" <r-390 at mailman.qth.net>
> Date: Wednesday, March 6, 2013, 6:15 PM
> 
> I have just purchased a R390A and am now trying to find out info and tips, etc. about its restoration.  Its a Motorola unit and it receives signals
> weakly. So I will lurk here and absorb wisdom if that's ok.  I have been out of "radio" for about 5 years, and now feel the call to get back into
> it with old receivers.
> 73 to all,
> Wes
> ex-WV5I
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> 
Wes it has been years since I rebuilt my 391. One of the most major things I seem to recall is to _not remove_ the front panel with all the gears behind it without putting the keeper gear in to prevent a nightmare come re-assemble time. On my 391 it was the offset gear inverted so the green side was facing out - it meshed with the clutch gear to preserve synchronization, my keeper gear was green if memory serves. This was early 1970s when I rebuilt that radio so memories can definitely be fuzzy. this may not apply to a 390, but I think it would be wise to check on it anyway.

Glad you renewed your interest - this is a nice group of people who are very knowledgeable.

Good luck on your project.

-- sherry guttery

A Tender Tale - a page dedicated to those Ships and Crews
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