Originally designed to analyze the shape of light pulses from a flash for photographic applications, this circuit can be used in other applications. We found it in a Hands On from the 90s.
This simple MW radio was found in a 1975 publication, but it can be mounted with BC548...
The coil and sockets of this circuit found in a QST depend on the frequency band that is intended...
The 4066 is better than the 401 B because the 401 B has a lower internal resistance when the...