MOSFET trigger (CB21480E)

This circuit was found in a 1967 Electronic Design. FETs are from the time, so modern equivalents can be used.

| Clique na imagem para ampliar |

One Quadrant Logarithmic Converter (CB15070E)
This configuration was found in an American publication from the 90s. Operators admit equivalents just...
TTL Oscillator (CB12678E)
The circuit shown in the figure has basically the same configuration as any TTL oscillator, with...
Tone decoder (CB19927E)
This circuit with the PLL567 serves as a decoder for PWM modulated signals of frequencies up to...