Audio Booster (CB6181E)

This reinforcing stages from a 1960s documentation. No information is given about the transformer and the transistor admits equivalents.

| Clique na imagem para ampliar |

Small Motor Protection and Control Circuit (CB5404E)
We find this circuit in a 2005 Linear Technology manual. The circuit applies to small DC motors...
Varicap in the Tuning Circuit (CB4102E)
The figure shows how to use a varicap in a conventional tuning circuit. The circuit may be an...
Decibel Meter (CB25898E)
We found this measurement circuit with a logarithmic scale in an Electronics Now from November 1995....