This circuit is an alternative to the previous circuit. We found it in the same article in the Radio Electronics magazine of March 1992. The integrated circuits are the LM3914.
Using an operational amplifier of the time, this circuit was obtained from a 90s Radio...
Equivalent transistors like the BC548 can be used on this 1969 Mullard circuit. The circuit has two...
This circuit is from 1995 documentation. The power depends on the transformer, which in this case...