@▷ Analog Frequency Meter Circuit | Diagram for Schematic

Analog Frequency Meter Circuit

analog frequency meter


Analog Frequency Meter Circuit using NE555

This 1-kHz linear-scale analog frequency meter circuit uses the 555 as a pulse counter.

Analog Frequency Meter Circuit

PARTS LIST R1 4.7kΩ R2 4.7kΩ R3 10kΩ R4 22kΩ R5 4.7kΩ R6 2.7kΩ VR1 50kΩ VR2 2.5kΩ C1 0.001µF C2 0.01µF C3 10pF D1 1N4148 Q1 2N3904 IC1 NE555 IC2 LM7805 M1 1mA meter

2N3904 NPN Transistor General Purpose Amplifier

2N3904 NPN General Purpose Amplifier

VR1 Adjust for 1kHz full scale reading.

Frequency is read on M1, (or 1mA meter) which can be calibrated to read 0 to 1 kHz.


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Measuring Circuits, Meter Circuits
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