We found this circuit in the November 1992 Radio Electronics magazine. The circuit uses an LDR as a sensor and the transistor can be any general-purpose transistor.
We found this circuit in a 1964 Electronic Design. It divides the frequency of a 20 MHz signal by...
TR1 must be mounted on a heatsink in this circuit. Voltage output is 8.6 V but this value can be...
This circuit generates sequenced pulses to control a stepper motor. The speed at which the pulses...