We find this oscillator in a 1980s documentation. The frequency depends on the crystal and the transistor used must be able to oscillate at the desired frequency.
Using an operational amplifier with FET, this voltmeter has a high input resistance. The circuit has...
This circuit was found in a Linear Technology documentation from the 90's. The integrated circuits are...
This circuit generates signals controlled by crystal and can generate marks up to 30 MHz of 1 in 1...