This circuit was found in the January 1991 issue of Radio Electronics magazine. The circuit uses integrated circuits of the time and the coils depend on the tuned bands.
Found in Popular Electronics from the 90's, this circuit uses 555 integrated and common...
This circuit was found in a 90s Radio Electronics. MOSFETs must have excellent heat sinks and heat and...
The idea of this circuit is to obtain a resistance of 10G ohms using an operational amplifier....