Re: {Collins} Was there a Collins desk at the 1964 NY World's Fair?

Ah, Gerry, Your mention of the 208U-3 brought back memories. I taught maintenance to the U.S.A.F. troops at Keesler AFB for this amp (along with the 208U-10). I was teaching the Global Command and Control System way back in the 80's. The U-3 was part of the Collins URG (Univerisal Radio Group) and it's systems. My big specialty, however, was the SW-3600 switchboard.

I've often wondered how many hams have, and use, the U-3. I know senator Barry Goldwater had one at his home QTH in Arizona back then.

P.S. Please don't ask me any technical question on any of this...My God, do you know how long ago that's been? Thirty years ago, and I taught so many pieces of ground radio equipment (22 years worth) that they all seem to get blurred in my old age. It's about all I can do to keep up with the S-line. And that's because I see it every day. Hi


On 12/9/2012 4:32 PM, Gerry Block wrote:
Glen, I think that all sounds right.. as far as I know went to the Aussies..

I like autotune.  I'm supposed to be retired.  If I was, my 208U-3 would be


From: Glen Zook <gzook@xxxxxxxxx>
To: Gerry Block <gblock@xxxxxxxxxxxxx>; "oldradio@xxxxxxxxxxx"
<oldradio@xxxxxxxxxxx>; collins List <collins@xxxxxxxxxxxxx>
Sent: Sun, December 9, 2012 9:24:49 AM
Subject: Re: {Collins} Was there a Collins desk at the 1964 NY World's Fair?

There were either 3, or 4, 30S-3 amplifiers built.  Some of the people involved
say 3 while others say 4.  One of those was owned by the late Joe Johnson,
W5QBM, who lived across the golf course from me.  Joe had been in the sales
department at Collins Radio.  I don't know if Joe had a son.  If so, that
particular 30S-3 may have been the one that you saw.  Joe was retired from
Collins Radio because of a bad heart.  We buried him on his 50th birthday.  I
was one of the pallbearers at his funeral.

Joe had modified his 30S-3 with a switch to disable the auto-tune function
because that feature would try to follow the changing load when the linear was
used on SSB.  The auto-tune was used when tuning up but was then disabled when
actually operating.

I have always wondered where that particular 30S-3 went!

Glen, K9STH


From: Gerry Block <gblock@xxxxxxxxxxxxx>
To: Glen Zook <gzook@xxxxxxxxx>; "oldradio@xxxxxxxxxxx" <oldradio@xxxxxxxxxxx>;
collins List <collins@xxxxxxxxxxxxx>

Sent: Sunday, December 9, 2012 10:57 AM
Subject: Re: {Collins} Was there a Collins desk at the 1964 NY World's Fair?


   There was a fellow here in San Marcos, Ca that had one and sold it a few years
ago.  His father was in the sales dept at Collins.  I concluded it was something
to admire in the other guy's shack.  I did not buy it.  But what really
interested me was what was next to it.  A 30S-3 linear.  That is not a typo, a
30S-3, which is an autotuned 30S-1.  Prototype only.  Too rich for my blood, I
think it went to Australia.

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