[GreenKeys] Just out of high school, in or near Chicago and looking for a future ??

[Jeffrey Angus]

On 7/17/17 9:14 AM, Duncan Brown wrote:
> Jeff,
>
> When were you working on the TT-523s?
1972 there about.
>
> We have one in the AWA Museum, but I never understood their real purpose.
> I know they were for low-level (50-100uA?) signalling between the TT-76 &
> crypto gear.  But in Viet-Nam (1967), we just connected out TT-76s 
> directly
> to the KW-7 crypto gear set to low-level and they worked fine.
The big word was "Tempest."
Even at 10-20 mA the local loop could be "heard" by the spooks.
So the idea was to reduce it to a level where it was undetectable.

At PEECO, we didn't actually manufacture anything. We made 4-5 units then
went though "First Article Testing" to prove that they were manufacturable
at which point everything was turned over to a 3rd party for manufacturing.

Another member here sent me the one I have. It's souvenir of my first "real"
job and sits on my desk. At the shop, there's a Navy VOM that matches
another of our "Make some and test them" projects