This circuit was found in the October 1994 issue of Electronics Now magazine. The 40446 IC is a PLL that is not very common today. The circuit has two types of effects.
Maxim Integrated's MAX17682 integrated circuit is available at Mouser Electronics, a...
This circuit has a type of bias called "virtual earth" providing good gain, given by R2. The...
Details of the coil of this two-transistor generative receiver were not given. We found it in a...