This low-power, low-supply voltage amplifier uses a preamplifier to achieve a high-gain configuration. The circuit is from the November 1999 issue of Electronics Now magazine.
The presented differential amplifier, indicated for instrumentation, was obtained in the 1994...
This circuit provides a signal when dialing occurs. The circuit is powered by the telephone line...
This circuit uses two TTL trigger inverters to generate signals that can be adjusted at R1. The...