CA3080 Amplifier (CB25131E)

This amplifier with an OTA has a gain of 40 dB. The power supply must be symmetrical. Found in Radio Electronics, May 1988.

741 amplifier for phototransistor (CB25522E)
In the figure we have an amplifier using the 741 operational amplifier without the need for a...
Thermally Controlled Nicad Battery Charger (CB23604E)
The charging current of this circuit is controlled by the temperature of the accumulators, which is...
Voltage doublers (CB24952E)
In the figure we have two simple configurations of voltage doublers. Resistors and diodes are...