[GreenKeys] Board came, beautiful..... loop supply..

[Linger, Michael I]

My board came and it's really cool.  Now my challenge is to dig out my loop supply that I built around 1978.  I saw it a couple of months ago in the attic, just can't remember where.

For my loop supply I took a 19" panel (5" tall) and sawed a rectangular hole on one side of it (lots of filing to make it look nice) and bolted a plexiglas panel in for the isolation needed for the 6 phone jacks (5 shorting, one open).  Then I built a power supply that puts out about 150 VDC, mounted a 2500 ohm 25w rheostat (from the junk box) on the front panel in series with the power supply.  I never did mount a meter on it because with the sawed out area didn't leave enough room.  But I did put 2 female pin jacks with a jumper on the front panel to plug in my VOM when I wanted to reset the current with the pot.  All this was done in a 6' rack cabinet because I had the FRR-59A (huge) and R-390A receivers mounted in it along with a CV-89A and ST-6, which all hooked up to the 28 ASR for Navy MARS operation.  Somewhere I have a pix of it all.  I still have all of it but the FRR-59A and the 28ASR.  I'm now paired down to a 28 Compact, 28LPR, and LXD, ..........quite a size change.  .....................
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.qth.net/pipermail/greenkeys/attachments/20160518/f25c7da1/attachment.html>