Found in a 303 Circuits from the 90s, this circuit converts signals from the 10 kHz to 150 kHz band to the 4.01 to 4.15 MHz band.
Found in an Electronics World of 1968 this circuit can use any SCR and diodes depending on the...
This 1 kHz triggered oscillator was found in an Electronics Now from the 90s. The circuit fires off...
We found this amplifier in an English publication from 1993. The circuit can be assembled today...