This is the receiver for the previous circuit, also found in 90s Radio Electronics. The circuit operates at 2.25 MHz, detecting variations in signal frequency due to the Doppler effect.
Found in a 1964 Electronic Design, this circuit generates 1 A pulses with durations from 100 us to...
This low-current control circuit has a lamp as a load, but can have other types of devices, such...
This circuit was found in an old American optoelectronics manual. The circuit makes use of an...