Tone control and preamplifier (CB8506E)

Based on the TCA6600 or TCA5500 this circuit was found in a 90’s European documentation. The integrated circuit used is not very common today.

| Clique na imagem para ampliar |

Colpitts Oscillator (CB22386E)
The frequency of this oscillator is given by the coil and by C1/C2. The circuit supports any...
Robot Eye (CB25010E)
This 9-pixel circuit has been implemented with 9 LDRs and can be coupled to a processing system for...
9V Recorder Switch (CB23652E)
This control circuit was found in a Radio Electronics from May 1965. The circuit switches a...