[R-390] Unfamiliar R-390 variant on ebay overnight

[Les Locklear]

It is obviously an R-390/URR silk screened front panel that someone has taken liberties with and added a bunch of Raytheon (and other) knobs and the "Collins R390 Receiver" at the top right. Who knows what lurks on the underside of the chassis. 

The smart move would be to take the U-Shaped front panel to the garbage and piece the rest of it out.

Where R-390A/URR modules are abundant, the R-390/URR aren't. There are fewer of them today than there will be tomorrow.

The seller has an bunch of other "junk" that was supposedly the estate of an engineer. From the looks of some of it, he must have been a railroad engineer and was testing to see which piece could derail a train...

Les Locklear

"The two most common elements in the universe are Hydrogen and stupidity".

    Harlan Ellison
    US science fiction author & screenwriter (1934 - 2018)



----- Original Message -----
From: Jacques Fortin <jacques.f at videotron.ca>
To: 'Roger Ruszkowski' <flowertime01 at wmconnect.com>, <r-390 at mailman.qth.net>
Sent: 4/24/2020 11:25:19 AM
Subject: Re: [R-390] Unfamiliar R-390 variant on ebay overnight
________________________________________________________________________________

Roger, you should have a better look.
IF band select is there (selectivity KCS)
Antenna matching is there (ANT TRIM)
BFO pitch is there (BEAT FREQUENCY)
Terminal board screws ???
Are you sure you looked at the right item ??

Can be a home-brew project, I agree 100%, but what if it is something else ?
The antenna relay box is not the standard one either.
We need to see the rear and bottom sides.

73, Jacques, VE2JFE

-----Message d'origine-----
De : r-390-bounces at mailman.qth.net <r-390-bounces at mailman.qth.net> De la part de Roger Ruszkowski
Envoyé : 24 avril 2020 11:35
À : r-390 at mailman.qth.net
Objet : Re: [R-390] Unfamiliar R-390 variant on ebay overnight

Fellows, That is a home brew project. No IF band select.No Antenna Matching.No BFO pitch adjust. Terminal board screws on the front bezel. It looks like a rebuild to a low power transmitter. Who know what the original design was and the e Bay sellerdoes not know how to put of photos of the other sides of the box that would help the seller sell their box.  Other than two big knobs, why does any one think this is an R390 thingy? Nice item.  -----Original Message-----
From: Terrence Harvey via R-390 <r-390 at mailman.qth.net>
To: R-390 Forum <r-390 at mailman.qth.net>
Sent: Fri, Apr 24, 2020 9:39 am
Subject: [R-390] Unfamiliar R-390 variant on ebay overnight

Group;

    The following appeared on ebay in last day or so.

https://www.ebay.com/itm/Collins-R390-Receiver/392774304538?hash=item5b732c431a:g:TPIAAOSwp6ReofXP

Thought I' d ask for some feedback from the more experienced members of the group on this receiver.

Best Regards,

Terry Harvey,

Crystal Lake, IL
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