Bob,
It is a false impression. The r-390 and the R-390A were VERY purpose
built for radio intercepts AND diversity reception.
The R-390A was a "cost reduction" version of the R-390.
The entire R-39() series is built in modules, that are interchangeable
without regard to chassis S/N. You turn off, unscrew the "green screws"
that mount THAT module, disconnect the cabling, and drop in a repaired
module, reversing the process.
The "digital readout" is a mechanical device that is driven by the
synchronized gear train.
Bob - N0DGN
Bob Macklin wrote:
I had the impression the R-390 was essentially a R-388 with a digital
readout.
Bob
K5MYJ
----- Original Message -----
From: "Ed Sieb" <[EMAIL PROTECTED]>
To: "Discussion of AM Radio in the Amateur Service"
<amradio@mailman.qth.net>
Sent: Friday, November 28, 2008 12:38 PM
Subject: RE: [AMRadio] Collins R-390?
No. The R-388 is the military version of a 51J-3. The R-388A is the
military version of a
51J-4.
The R-390 series came much later.
--------------------------------------------------------------------------
---------------
Bob Macklin wrote:
s the Collin's R-390 (and R-388) basically a Mil version of 51 series
receiver?
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