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.
Suggested by Motorola in a 1980s publication, this circuit is insensitive to changes in bias...
June 2017 - The new ROHM Low Dropout Voltage Regulators (LDOs) for 3.3 V or 5.0 V high accuracy...
This circuit makes use of a transconductance operational amplifier. It generates signals with TTL...