This low-power benchtop circuit has an output for external use and other features. The circuit is from the 1995 Encyclopedia of Electronic Circuits Volume 5.
This circuit was obtained in an Argentine publication in 1976. It consists of a series voltage...
This circuit was published in a 1977 Radio Shack catalog. The PNP transistor may be BD135 and NPN...
This amplifier with an OTA has a gain of 40 dB. The power supply must be symmetrical. Found in...