[ICOM] First Icom HF radio was IC-701

[Charles.Frost at aliefisd.net]

That could be but you notice the name Wadley.
73
Frosty  K5LBU

-----Original Message-----
From: icom-bounces at mailman.qth.net [mailto:icom-bounces at mailman.qth.net]
On Behalf Of Bill Gode, Sr.
Sent: Friday, October 19, 2007 8:03 AM
To: icom at mailman.qth.net
Subject: Re: [ICOM] First Icom HF radio was IC-701

I apologize for the OT radio history, but I believe the first PLL
receiver was 
actually the National AN/WRR-2 (FRR-59) from the late 1950s.  It had 64
tubes 
and a Wadley Loop synthesized HFO.  You can see photos and examine the
block 
diagram here:

http://web.tiscalinet.it/milradio73/radio_WRR2.html

73,

Bill, W9NHQ



----- Original Message ----- 
From: <Charles.Frost at aliefisd.net>
To: <icom at mailman.qth.net>
Sent: Friday, October 19, 2007 7:13 AM
Subject: RE: [ICOM] First Icom HF radio was IC-701


The first PLL radio was the Barlow Wadley XCR30 developed and built in
South Africa.

Frosty
K5LBU

-----Original Message-----
From: icom-bounces at mailman.qth.net [mailto:icom-bounces at mailman.qth.net]
On Behalf Of Ron Hashiro
Sent: Friday, October 19, 2007 4:30 AM
To: icom at mailman.qth.net
Subject: [ICOM] First Icom HF radio was IC-701

Yes, the first Icom HF radio was the IC-701.  Had the same type of
opto-interrupter VFO control found on the Icom VHF radios of the
same vintage.  I also believe it was the first HF PLL radio of its
day.


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