Jacob's Ladder (CB21079E)

This circuit was found in American documentation from the 90's. The transformer is of the high voltage type for old light advertisements.

| 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...