[R-390] R390 Number Stamp Under ID Plate

[Thomas Hoyer]

Cecil and Jacques, 
Thanks for the reply. I was surprised to see it there as none of the five (yes five - don't ask how or why - they find me....) Collins R390A's I have do not have this marking.
My "other hobby" is working on old Corvettes and I know on them there is usually a job number written in odd places to keep track of the car as it went down the line - figured this could be something similar.
TomW3TA


-----Original Message-----
From: Jacques Fortin <jacques.f at videotron.ca>
To: 'thoyer' <thoyer1 at verizon.net>
Cc: R-390 at mailman.qth.net
Sent: Wed, Feb 24, 2021 10:07 pm
Subject: RE: [R-390] R390 Number Stamp Under ID Plate

Hello Tom,

I believe that the significance of those numbers is relative: every
sub-assembly in those radios bears a serial number, including the front
panel, and those numbers did not necessarily match each other.
I do not believe that it was initially a manufacture intent to produce the
whole radio with sub-modules serial numbers matched to the "top" one.
My own R-390 have a ID plate with the serial 2074 but the number stamped
under it, in black, is 2090.

73, Jacques, VE2JFE in Montreal
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