I have a KM1H modified SB-200 for 6M. The previous owner removed the
open-frame relay and went with extrenal relays but the 7W 2K resistor is
still in place. I have a nice pair of SPDT coaxial relays that I can fit
inside. They are 28VDC a piece and have a coil resistance of about 200 ohm a
piece.
The original open frame was 120VAC? But keyed on about 130VDC? from the grid
cut-off bias circuit and I have no idea of the resistance it had.
What if I wired these 2 in series for 56VDC and put a dropping resistor in,
can I use these as a simple replacement (as opposed to a seperate 28VDC
supply)?
How will it affect the grid bias?
Any other ideas?
I plan on a Harbach Soft Key to be installed also if this helps with an
idea.
Gary Mitchelson
Montgomery Co. MD FM19lc
N3JPU@erols.com (Home)
n3jpu@arrl.net
Gmitchelson@racalusa.com (Work)
http://members.tripod.com/n3jpu/
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