[GreenKeys] Need a UGC-136 teleprinter (or 46) ?

[Nick England]

I think $26,600 was the original acquisition cost per unit...
https://cdn.ironpla.net/i/19008/956/463f0dd5-644c-40a5-a7f3-65ff26e98b4f.jpg


Nick England K4NYW
www.navy-radio.com


On Sun, May 11, 2025 at 1:36 PM Harold Hallikainen via GreenKeys <
greenkeys at mailman.qth.net> wrote:

> That's only $52 each. Those look like they really cost a lot to build.
>
> I note in the photo at
> https://www.navy-radio.com/tty/ugc136/ugc136-1711-36.JPG that there
> appears to be Rogers bus bars between the rows of chips. I used those in
> products I designed in the 1980s. I had custom 3 layer bus bars made by
> Rogers Corporation. The middle layer was ground, one outer layer was +5V,
> and the other outer layer was -12 V. These carried power to the MOS chips
> in the product. The Rogers bus bars made it possible to use just two
> layers on the PCB since power was distributed by the bus bars. Further,
> the capacity between the layers served as power supply bypass capacitors,
> so no bypass capacitors were required at the chips.
>
> I hope someone buys these instead of their being scrapped. I don't have
> room for any more equipment (according to my wife).
>
> Harold
> https://w6iwi.org
>
>
> On Sun, May 11, 2025 10:00 am, Nick England wrote:
> > https://www.govplanet.com/jsp/s/item/13340938
> >
> >
> > They had no bids at $26,000 or $8,000
> > Opening bid is now $2,400 for the lot.
> > At some point I guess it is scrap metal price..Sigh.
> >
> >
> > If you are curious,UGC-136 info and manual are at-
> > https://www.navy-radio.com/tty/ugc136.htm
> >
> >
> > Nick England K4NYW
> > www.navy-radio.com
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