Headphone amplifier (CB7100E)

This high impedance headphone amplifier was found in American documentation from the 1990s. Any general-purpose FET can be used.

| Clique na imagem para ampliar |

Limiter Amplifier (CB12468E)
This amplifier for effects on musical instruments can be mounted with BC549 transistors. The...
Proximity sensor (CB9570E)
This circuit was found in documentation from the 1980s. The circuit uses several components of the...
Simple Optical Modulator (CB14680E)
The presented circuit can use an equivalent transistor like the BC548. The configuration, which [is...