This amplifier with two FETs in direct coupling (cascode) was found in a 90s Popular Electronics. The MOSFET can be of almost any type like the MPF102.
The circuit shown is from the 1994 Linear Applications Handbook by National Semiconductor. Some of...
This simple transistorized radio for listening on a crystal phone was found in a Japanese...
In the MEMs line of the ST available on Mouser Electronics we highlight the MP23AB01DH audio...