Since 1975, ICMI has designed and manufactured the 4 step Autobooster control for the SR-32 four(4) step Single
Phase Voltage regulators of 50 or 100 amp. The controls were originally listed under McGraw catalog #37C142145,
and later changed to Cooper TAC 142145. The control is still available from I.C.M.I. Base priced at $ 595.00 US
dollars in any catalog versions OOA- L, or AA003-14, 3 volt through 6 volt bandwidth. ICMI Part #7000-version.
The control is a copyright design of ICMI 1975-2008.