In the figure we have a circuit in which two moving bar/dot indicators are connected together to increase the number of LEDs. The circuit is from a Radio Electronics from October 1980.
We found this circuit in a publication from the 90s. The circuit has a tuning range of 500 to 1...
This circuit was found in Radio Electronics from the 90s. The transducer is a tweeter and the...
This circuit can supply voltages in the range of 8 to 20 V with a maximum current of 3 A. The...