This circuit was found in Motorola documentation from 1968. SCRs can be modern equivalents and the maximum load is 5 A at 40 V.
The circuit shown here uses a 4047 to produce three signals whose frequencies are determined by C...
This circuit consists of a traditional amplifier version with complementary output using BD series...
This circuit operates with an AM radio tuned to or near 900 kHz if there is a station at this...