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.
This continuity test was found in a 90s Electronic Engineering. Transistors are types of general...
The shunt type regulators are connected in parallel with the load, deflecting the current to...
This circuit protects the speakers in case the amplifiers have problems. With a continuous voltage...