[R-390] Bi-lateral xcvr

Sat, 17 Aug 2002 11:43:31 -0400

Hi John:

You asked about the term "Bi-lateral Transceiver."

This was the trade name for the Cosmophone series of ham equipment.

There was a 1 kW unit, and a lower power (100-W ?) model.

I remember the stir they caused at at the ARRL Convention in 1959 at the old
Statler-Hilton Hotel in New York City. I was just a Novice at the time, and
a lad of about 16, but I clearly remember the OTs clamoring for a chance at
the microphone on "the new single-sideband" voice mode.

Cosmos Industries in Queens, NY made the units. The company had a
hospitality suite set up on a top floor of the hotel at the time. This is
the same firm that made the Cosmos PTOs for our beloved 390As.

I even have some information around here on the sets, if you want more
info..

Vy 73, AI2Q, Alex in Maine

Motorola R-390A, Collins R-390, S-W R-392, Collins 51J-4, Collins KWM-1.

-----Original Message-----
From: [email protected] [mailto:[email protected]]On
Behalf Of [email protected]
Sent: Saturday, August 17, 2002 11:27 AM
To: [email protected]
Subject: [R-390] Broke 390

Friends,

Thanks to all who suggested answers...Today will be
the day I get it out; my son will be by..Then we will
look to see if we can see what was burning..

May bother one or more of you who offered help..if, as
is likely, I can't do it...

Also:

Wonder how hard to manage 392 for normal use..Used
it in mil..but never since..What do you use for power
supp and is it practical? (One would be smaller for a
limited bedside location..My wife does not want the
big radios beside my bed..reason I use either the
weak 394 from Radio Shack, or the 515 for that
location..)

Also:

Anyone know the term "Bi-lateral Transceiver"? Person
I have run into wants to find one but can't remember
the manu. except it started w/"C". Says it was two
receivers tracking w/one transmitter..??? (In one
unit). He said it might have been "Cosgrove" or
something near that...

See You later...

John

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