Found in Philips documentation from 1968 this circuit operates at frequencies up to 10 MHz with 76 dB gain. The double transistor can be replaced by a matched pair.
The presented circuit uses an uncommon operational amplifier but can be implemented with a more...
The circuit shown uses a FET as a stabilizer, as this type of circuit usually uses lamps in this...
This circuit is from an American publication from 1975 and can use other operational amplifiers and...