[Milsurplus] SC-901X questions

[Francesco Ledda]

The SC90x modules are similar to the the R-1051 series but non interchangeable. The SC modules are older generation with many similarities but not the same.

Sent from my iPad

> On Mar 27, 2018, at 12:39, Joseph Pinner <jpinner33 at att.net> wrote:
> 
> I have an original manual for the SC-908. It is a USAF T.O. dated 1 March 1963.
> 
>> On 3/27/2018 4:34 AM, Nick England wrote:
>> There was a matching 1kw SC-9?? amp using a PL-172. One shows up on eBay every now and then. 
>> 
>> I suspect this was all a USN funded development effort. Air Force use was just incidental. The low power exciter design allowed flexibility as it did for TMC. 
>> 
>> And commonality of modules for transceiver, receiver, and transmitter was a big plus. Navy versions were RT-618, R-1051, and T-827. Amps for 100w (AM-3007) and 1kw (AM-3924) output were used. 
>> 
>> OT- Duck and cover was to protect kids from flying glass and debris. No use at ground zero but there would be huge areas getting shock wave damage. People nowadays laugh at CD, SAGE, etc. but remember this was just after a world war with 100 million dead and suddenly a single aircraft could destroy a city. The govt was rightfully extremely worried. 
>> YMMV
>> Nick
>> 
>> 
>>> On Tue, Mar 27, 2018 at 7:34 AM Hubert Miller <Kargo_cult at msn.com> wrote:
>>> This doesn't address why a SSB exciter was built into its own package, when the power output
>>> from it would not suffice for communication on its own. I didn't bring mine back with me from the
>>> trip, but I don't recall rackmount ears on it either.  Maybe next time. I'm sure it will be super
>>> interesting to pull the cover and see the insides.
>>> 
>>> Diving under a desk wouldn't protect you from a nuclear blast unless you were far enough that
>>> the pressure wave was lessened at your location. Then it might help you ward off some flying
>>> glass and other junk. But even if you were closer, too close to survive the initial effects, very few
>>> people would just give up, say why even bother. That's not human nature.
>>> -Hue
>>> 
>>> >CD was Civil Defense. Back when 
>>> the Nuclear Holocaust was just 
>>> around the corner.
>>> 
>>> Tons of that stuff sort of went away 
>>> and never heard from again.
>>> 
>>> As for the SC-901X, it was designed 
>>> to survive a Nuclear blast. People 
>>> really got paid big bucks back then 
>>> to think up these requirements. 
>>> 
>>> I remember when schoolkids had to 
>>> crawl under their desks in the event 
>>> of a Nuclear attack. Like that would 
>>> help you survive a 20 Megaton blast.
>>> 
>>> 73, Dick, W1KSZ
>>> 
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>> -- 
>> Nick England K4NYW
>> www.navy-radio.com
>> 
>> 
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> 
> -- 
> Joseph Pinner 
> Kingston, TN
> 
> KC5IJD / AFA4JP
> Roane County OES 408
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