This circuit generates sinusoidal signals from 15 Hz to 15 kHz. The circuit is from Electronics Now magazine from December 1995. The power supply must be dual.
This circuit can operate in a 100 dB range with signals of up to 100 MHz frequencies. Similar...
Suggested by Radio Electronics from the 90s, this circuit is suitable for NiCAd batteries with a...
This circuit is from Delco Radio found in a 1968’s documentation. The transistors are of the time...