[GreenKeys] loop supply

Virgil Bierschwale vbiersch at gmail.com
Thu May 18 17:12:32 EDT 2023


A few years ago somebody sent me this loop supply to get my model 28 KSR
running.
Sadly, I guess my electronics skills are no longer good as I'm not sure how
to hook it up.

In case the picture doesn't come through, it has a teletype 152950 120 ma
loop supply attached to a box that has a switch and terminal strip in it.

The red and black wires from this supply go to:
red to two large resistors in parallel
black to the terminal strip.

I'm thinking I need to take the output of the resistors and run it to the
teletype and then take the output from the teletype and hook it to the
black wire on the terminal strip which will complete the loop.

Is that correct?

Thanks,

Virgil
N5IVV
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