[R-390] screws and washers

[W2xj]

Are you sure? The R390 is of a vintage when 10-24 screws were common. This depends of the rack rails and not the radio. Racks can still be ordered with either thread but for authenticity, it is really the screw head that is important. I honestly forget what we used back in the day. I suspect that since the R390 was used in so many services under so many different field conditions that there was no one “authentic” mounting method.  This is especially true at remote sites where many “rules” were more like suggestions. 

Sent from my iPad

> On May 22, 2019, at 10:12 PM, John Gedde <jgedde at optonline.net> wrote:
> 
> If McMaster-Carr doesn't have exactly what you're looking for I'd be hard pressed to tell you who does...
> 
> The screws are indeed 10-32.
> 
> 73s,
> John
> 
> 
> 
> 
> Sent from Samsung tablet.
> 
> -------- Original message --------
> From: Joe Koester <jwkoest at charter.net> 
> Date:05/22/2019  9:46 PM  (GMT-05:00) 
> To: R-390 at mailman.qth.net 
> Subject: [R-390] screws and washers 
> 
> Hey guys,
> 
> 
> 
> I am looking to get my R390A and my R725 into cabinets.  Back in the day
> these things were help in place with I think a 10-32 screw with an oval head
> and a finishing washer.  Also as far as I remember the recorders and other
> stuff was rack mounted the same way. I am trying to locate the right screws,
> which I think were ¾ or 1 inch and may have been “pan head, as well as the
> washers.  
> 
> 
> 
> I want this to look nice and original.  Anyone know where I can get what I
> am looking for, even used would be great if anyone has a stash – I need 16.
> 
> 
> 
> Thanks,
> 
> 
> 
> Joe
> 
> 
> 
> Joseph W. Koester, W4NSA
> 
> 1020 Huron Drive
> 
> Crossville, TN 38572-6304
> 
> 931-788-1360 (home)
> 
> 931-200-0243 (cell)
> 
> jwkoest at charter.net <mailto:jwkoest at charter.net> 
> 
> 
> 
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