This power supply was featured in the December 1973 issue of Radio Electronics magazine. This type of circuit was used at the time to power tube televisions.
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)....