[R-390] Special Purpose R-390

[Chris Kepus]

Roger, can't see whatsit on your deck.  And I don't have a Kielbasa in both
eyes.  Are you able to post the picture to one of the free web picture sites
and give us a link to it?
73,
Chris
W7JPG

-----Original Message-----
From: r-390-bounces at mailman.qth.net [mailto:r-390-bounces at mailman.qth.net]
On Behalf Of Roger Ruszkowski
Sent: Wednesday, February 19, 2014 4:08 PM
To: r-390 at mailman.qth.net
Subject: Re: [R-390] Special Purpose R-390


Fellows,

The name plate is not mil spec.
Cool but not government.

Cool knobs.

Are they locking knobs?

That is an R390A
Are there any internal mods?

How about a pictures of  the back panel, top side looking in and bottom.
Can you fellows help me guess what in this box on my deck?


Roger Ai4NI


-----Original Message-----
From: Don Kammer <norad2240 at gmail.com>
To: Charles Steinmetz <csteinmetz at yandex.com>
Cc: 390 list <r-390 at mailman.qth.net>
Sent: Tue, Feb 18, 2014 6:58 am
Subject: Re: [R-390] Special Purpose R-390


I agree with you about the knobs.  I noticed them immediately and was
convinced they were either cosmetic or were put there as one piece each to
provide a significantly better grip, such as would be provided to a bicycle
chain.

The plate is another matter.  I think the plate was a stamped template
applied to both flavors of the R390, regardless of who actually built them.
Yes, we know this beautiful child originally came from Collins, but I think
that any company referring to itself as Clark "Instruments" would have some
sort of inkling for the difference between an R390 and an R390-A!  Thus, it
may or may not be a Collins based on their idea that "one size fits all"
with their cavalier plate application stating that it's either/or...!

Counting down to next Monday - 02/24!!!

Don Kammer


On Tue, Feb 18, 2014 at 11:06 AM, Charles Steinmetz
<csteinmetz at yandex.com>wrote:

> Don wrote:
>
>  From what I can read (and interpolate), I believe I'm seeing the
>> following:
>>
>> RECEIVER SPECIAL PURPOSE
>> Type:  .5 TO 32 ...
>> Modified by Clark Instruments
>> Original Type Receiver ...
>> COLLINS RADIO COMPANY
>>
>
>
> I looked at various magnifications and with a few filters and think I 
> was able to decipher a bit more.
>
> Carets (^) indicate unidentified characters:
>
> RECEIVER SPECIAL PURPOSE
> Type  .5 TO 32 MCS ^^^^^^
> Modified by Clark Instruments
> Original Type Receiver 390 OR 390A URR COLLINS RADIO COMPANY
>
> The only difference I see on the front panel is the MC and KC knobs.  
> They give the impression that there are separate "inner" and "outer"
> adjustments, but that could just be cosmetic.
>
> Best regards,
>
> Charles
>
>
>
>
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