The SB-21 is a 15 meter SSB/CW portable, with 1W output. It was sold by Mizuho beginning in 1977 and through the late 1970s.
We have very little information on this rare Mizuho rig. If you have specifications, internal photos, or a manual please contact the webmaster.
Top photo courtesy of Chen Song, BG4AHZ.
-Last updated 17 April 2006