Tone Generator (CB25099E)

This circuit was found as part of another project in a January 1988 Radio Electronics magazine. The frequencies are given by the timing capacitors.

| Clique na imagem para ampliar |

IR Monostable (CB874E)
The duration of the output pulse in this circuit depends on C. This capacitor can have values in...
Zener Diodes Test (CB12497E)
This circuit, found in a 1979 documentation, consists of a small inverter that applies a voltage to...
CMOS 4001 and 4011 Test (CB19073E)
This circuit was developed to test suspect 4001 and 4011 integrated circuits. The circuit is from...