We found this circuit in an American documentation from the 60s. The circuit can be made with equivalent transistors. It basically consists of a monostable.
This amplifier for effects on musical instruments can be mounted with BC549 transistors. The...
We found this circuit in documentation from National Semiconductor. For the medium wave range the...
According to what is said, the bugs are the female insects (mosquitoes, muriçocas and others)....