This circuit was found in a 1967 RCA documentation. The components are of the time. The circuit limits the current to 50 mA when the battery is fully charged.
This partial circuit that must be added to a preamplifier output transistor as in CB19186E...
This 4-competitor TTL speed game was obtained in a 1980s documentation, but can still be easily...
We find this circuit in an American publication of 1978. The integrated circuit is the CMOS 4013...