This circuit was found in a Philips documentation from 1966. The circuit provides 1 mW with a power supply of only 1.3 V. Transistors support current BC series equivalents.
This SCR timer was found in an old English documentation. The SCR can be the TUIC106 and modern...
This circuit generates an ultrasound whose frequency is set in P1. Reproduction is done on a...
The circuit presented is from the Motorola Linear Databook of 1990. The integrated circuit is a...