[R-390] production numbers in general

[Bill Cotter]

Kevin,

I worked at Lexington Bluegrass Army Depot from 1972-1975 during 
college, and we overhauled perhaps thousands of R-390 and 390A 
receivers. There was no effort to keep subassemblies with the 
chassis. In fact, the entire set was torn down to bare metal, 
replated, repainted, reassembled, and operationally tested to 
Collins specs. Each module would be repaired and tested by 
different work groups using test equipment and jigs. Disassembly 
and re-assembly were conducted on lines in a very large warehouse. 
Every receiver that was shipped had a new serial tag with a LBAD 
serial number.

73 Bill N4LG


At 12:50 PM 5/29/2022, Kevin Schuchmann via R-390 wrote:
>Hi All,
>Being that the depots could swap out anything how does one make 
>the call on what you really have?
>
>The R-390 (non-A) that I own says Collins order #14214-PH-51-93 
>serial #147, removing the plate there are no markings behind it.
>
>So do you go by what the front panel says? chassis? How does one 
>make the call?
>
>Thanks
>Kevin
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