Temperature to Frequency Converter LM35 or LM34 (CB25447E)

We found this circuit in the March 1992 Radio Electronics magazine. The circuit provides 100 Hz for each degree Celsius or Fahrenheit.

| Clique na imagem para ampliar |

Shield for relay activation in Motor control (CB23716E)
What differentiates this circuit from the previous one is the need for a much smaller current to...
Dwell Meter (CB16847E)
This circuit allows the use of the multimeter to measure the dwell meter, a feature used in the...
Live sound (CB9234E)
Found in Popular Electronics from the 90s, this circuit can employ other low power audio...