This circuit for the 3 to 6 MHz band was found in a 90s Popular Electronics. The components of the network formed by C6 depend on the frequency range to be covered.
When the illumination decreases, this multivibrator starts up, causing the lamp to blink at a...
Found in Radio Electronics, this simple indicator circuit uses general-purpose transistors common today....
November 2016 - Mouser Electronics is makingToshiba's new TLP78x and TLP79x isolation amplifiers...