Water-Activated Triac Switch (CB24054E)

This circuit is from a July 1970 Radio Electronics magazine. The sensors are metal probes. The 18 V power source must be isolated from the mains.

| Clique na imagem para ampliar |

witching Noise Suppressor (CB13688E)
S The purpose of this circuit, found in a 1975 publication, is to suppress the noise that occurs when...
AM and FM IF calibrator (CB16767E)
This circuit generates signals for the calibration of IFI (Intermediate Frequency) of traditional AM and...
Electronic Thermometer 741 (CB24713E)
This dual-operator thermometer circuit was found in the September 1982 issue of Radio Electronics...