This circuit appeared in Amateur Radio Today in an issue and was found in a 1995 issue. The circuit is for the AM band up to 3 MHz. The transistors are general-purpose.
This SCR circuit activates a buzzer when triggered. The circuit is from a Popular Electronics from...
This circuit is used for incandescent lamps and other resistive loads up to 3A using the TIC206. This...
This circuit is from 1995 documentation, but can be easily assembled today, as the components used are...