This circuit is from an American publication of the 80's. It makes use of components of the time. However, the circuit is the basis for a modern shield application since the input is TTL.
Found in a 90s Popular Electronics, this circuit monitors an RF signal providing a DC output. The...
This circuit can be used as a shield to control the matrix flow of 100 LEDs from a single output of...
The circuit in the figure generates a high continuous voltage, on the order of 40 to 6oV under a...