[R-1051] Navy and Air Force R-1051B 100cps modules are incompatible

[Francesco Ledda]

No, I did not. About 10 years ago, I bought 2 1051Cs; both had the 6-packs missing. I dropped a couple of 1051Bs packs, but did not work. A brief investigation showed that a portion of the six pack was not powered; don't remember which, but one of the voltages was missing. A single wire fixed everything. The only 1051Cs I have seen are the one I have. I was told that the C version was a USAF special used on the missile silos. Don't know if it is true, but I like the story, and I am sticking with it.

Best Regards,

Francesco Ledda

Sent from my iPhone


On Sep 4, 2012, at 11:57, David Wise <David_Wise at Phoenix.com> wrote:

> Paul, if the transistor version of the 100cps module came first,
> why did they go to the trouble of powering the logic with 4V?
> It's too much of a coincidence that that's the recommended
> Vcc for the IC's used in the IC version.  Did the transistor-version
> designers see the IC version coming?  This is too much foresight
> in light of the fact that they couldn't even keep the Navy and AF
> versions in sync.
> 
> Francesco, I hope you didn't find out the "hard way".  :/
> 
> Regards,
> Dave Wise
> SWL in Hillsboro, Oregon
> 
>> -----Original Message-----
>> From: r-1051-bounces at mailman.qth.net 
>> [mailto:r-1051-bounces at mailman.qth.net] On Behalf Of paul swed
>> Sent: Friday, August 31, 2012 6:25 PM
>> To: R-1051 Discussion Group
>> Subject: Re: [R-1051] Navy and Air Force R-1051B 100cps 
>> modules are incompatible
>> 
>> transistors were first in the r1051s and go wayyyy back.
>> I was trained on the brand new radios in 1973. Second class at 
>> great lakes.
>> Gosh dollars $27K each.
>> Regards
>> Paul
>> WB8TSL
>> 
>> On Fri, Aug 31, 2012 at 9:19 PM, Francesco Ledda 
>> <frledda at att.net> wrote:
>> 
>>> I found out about that 10 year ago, when I got my 1051C....
>>> 
>>> FL
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