Harbach Soft-start in SB-221

[Thomas Beltran]

I finally decided to put the Harbach SK-220 in my SB-221.  Well, the circuit
board did not fit.  Fortunately, I have an SB-220 assembly book, and
realized that there is a molex connector, right near where the SK-220 board
should go.  The molex connector is not in the SB-220, hence there is plenty
of room to mount it the way it says.  There is another difference.  The blue
wire that goes to the center connector of the Relay jack does not connect
directly, it goes to a small torroid which is mounted on the jact.

I have always figured that the SB-220 and 221 were identical, minus ten
meters on the 221.  Apparently this is not the case.  I went back to the
Harbach web site, and realized - the 221 is never mentioned - only the 220.
One would think that there would be instructions for the 221 as well.  Now
(finally) for my question:

Has anyone put a SK-220 kit in a SB-221?  Does it work?  Where did you put
the circuit board?   Tom W6EIJ

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