This circuit was found in a 1970's Radio Electronics. The pulse transformer has a 1: 1 turn ratio. The triac must be in accordance with the controlled load.
This circuit is from the 2005 Linear Technology Application Manual. It provides an indication of the...
The frequency of this oscillator depends on the amount of light incident on the LDR. The circuit,...
This filter for frequencies from 300 Hz to 3.4 kHz was found in the February 1995 Radio...