Found in older Signetics documentation, this circuit generates signals from 30 Hz to 25 kHz. Operational amplifiers are from the time, as is the matching pair of transistors.
This sensitive 4-transistor signal follower can be used in both audio and RF circuits. P1 is a...
This circuit for powering TTL and even modern microcontrollers is from February 1987, Radio...
This amplifier of a few watts of power was found in English documentation from 1995. Power...