This receiver with earphone listening for the medium wave range was published in Radio Electronics magazine in February 1958. The circuit was powered by a 15 V battery.
This circuit uses a common diode to switch a high frequency signal. The circuit was found in the...
This circuit was found in a 1974 publication. It converts the applied voltage into pulses of...
Based on TTL logic this circuit can vary both the frequency and the pulse width of a rectangular signal....