This circuit is from the time when slide projects were used. We find it in a 90's Wels’ Think Tank. The lead times can be adjusted from 5 to 30 seconds.
This project was found in a 1982 documentation. Super-regenerative receivers can combine great...
We found this circuit in a 1977 technical documentation. The circuit can use a TIP31 for Q1 and a...
This high frequency modulator was found in Motorola's 1990 Linear Databook. The current depends on the...