This differential amplifier, found in a 1964 Electronic Design, has a gain of 30. The setting can be applied to modern equivalent transistors.
This circuit can generate signals up to 5 MHz according the power supply voltage. Frequency is...
The circuit shown bellow is gated by an external signal. A high logic level applied to the input...
This simple light meter or photometer circuit uses an analog indicator of 0-1 mA. Power is...