Joe,
I had my SB-220 opened up for other work and took the following readings:
HV secondary winding: approximately 11.8 ohms
Primary #1 Blk to Yellow: 1.1 ohms
Blk to Blk/Yellow: 1.0 ohms
Primary #2 Blk/Green to Blue: 1.1 ohms
Blk/Green to Blk/Red: 1.0 ohms
Your readings may vary somewhat depending on your digital meter and also how
long you let the readings stabilize as the windings "charge up."
I also have a Peter Dahl hypersil replacement #SB-220-3 for my SB-220. The
secondary measures 10.8 ohms on this transformer which has a higher current
rating.
73, Dennis W0JX
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