This circuit generates output pulses with sequential delays. The delays can be programmed by the values of the resistors and the capacitor. The supply voltage can typically be between 5 and 12 V.
Another of the many tachometer circuits we have on our site. This one is from the September 1976...
This filter for receiving audio in telegraphy was found in a magazine 73 for radio amateurs, in an...
This filter was found in an 80's English publication. However, it can be implemented with modern...