This commercial 6-digit clock circuit was found in August 1976 Radio Electronics magazine. Note the supply voltages and the use of a period module.
This circuit is intended for charging 12 V Nicad batteries, which corresponds to 10 common...
This circuit for discharging NiCad batteries limits the current to a value that can be adjusted in the...
This current-limited circuit was found in a Popular Electronics from the 90's. ...