This circuit for the 3 to 6 MHz band was found in a 90s Popular Electronics. The components of the network formed by C6 depend on the frequency range to be covered.
Found in an American documentation from the 90's, this circuit aims to light a neon lamp with...
This transistor circuit consists of a well-known bass and treble control configuration. The...
This circuit was found in the September 1997 issue of Electronics Now magazine. The circuit uses...