A simple signal strength indicator. Scheme, description

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ENCYCLOPEDIA OF RADIO ELECTRONICS AND ELECTRICAL ENGINEERING
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A simple signal strength indicator. Encyclopedia of radio electronics and electrical engineering

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Encyclopedia of radio electronics and electrical engineering / Measuring technology

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The simplest circuit I have ever seen.

A simple signal strength indicator. Scheme

The circuit operates in the widest range of supply voltages - from 3 to 18 volts. The only thing to consider is the resistance of the resistor R3. And the resistor R1, as you might guess, adjusts the input signal level.

Rђ RІRѕS, here you can download a file with a board drawing for this farm. The board is designed for two channels at once. View from the side of the details - you can immediately print under the iron.

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