This circuit was obtained from an 80's Radio Electronics. The circuit decodes “scrambled” or sinusoidal encoded signals by providing an audio signal at the output.
Found in a Popular Electronics from the 90s, this circuit presents the difficulty of obtaining the...
This circuit is intended for testing small capacitors. What we have is an astable multivibrator, which works...
I found this circuit in a Popular Electronics from November 1999. The magazine is no longer...