This circuit is from an Electronics World of 1968. The transistors are of the time and the power is supplied with a voltage of 40 V. The circuit is high fidelity.
We find in a Radio Electronics of the 90s this low noise amplifier that makes use of an uncommon...
This circuit was found in an 80's documentation using an NE5514, operating at the time. The font...
This complementary-output amplifier can be used to source a good qualuty signal to high impedance...