This circuit was found in a PE Hobbyst Handbook of 1989. It uses a black light fluorescent of the time. Small fluorescent black light from 1 to 4 W can be used.
This circuit generates signals for adjustments in FIs of 10.7 MHz. The transistors can be BC548 or...
We found this configuration in a 1978 publication for radio amateurs. The pulse duration is given...
This circuit sequentially drives loads connected to its outputs or even applies the signals to the...