Suggested to power the previous circuit, this power supply was found in the December 1990 issue of Radio Electronics magazine. Integrated circuits must be equipped with heat sinks.
This circuit produces a tone by a small loudspeaker. Frequency depends on C1 and C2. These...
We found this circuit in an 80's EDN. The circuit makes use of a MAX680, being given a table with...
Decade counters, such as the 4017, can be cascaded as sourcing signals with the frequency divided...