This series LED circuit was found in the February 1992 issue of Radio Electronics magazine. The effect's speed is dependent on C1 and adjusted by R3.
This circuit is from a 70s documentation. The maximum sampling rate is 800 Hz. The operational...
This standing wave alarm (SWR) warns when a high SWR value may mean an overload for the...
This circuit has a very high input impedance and a very low output impedance. We found it on a...