Square triangular VCO LM3600 (CB25153E)

We found this circuit in the July 1988 Radio Electronics magazine. The frequencies are given by capacitor C1 and the voltage input is made at pin 1.

| Clique na imagem para ampliar |

Non regulated power supply (CB23832E)
This unregulated low voltage source was found in the July 1962 Radio Electronics magazine....
Sound and Ultrasound Generator (CB12707E)
Sounds and ultrasounds can be generated with the circuit shown in the figure. What we have is a...
Fast Logarithmic Converter (CB5104E)
This circuit was obtained from an American 80's documentation. It can be implemented with modern...