Noise limiter for receivers (CB8065E)

We found this circuit in a 73, magazine for radio amateurs of the 90s. The circuit is passive and most telecommunications receivers can be added.

| Clique na imagem para ampliar |

Portable Amplifier Power Source (CB17105E)
This circuit supplies a voltage of 42 V, plus a symmetrical voltage of 12 V with 1 A. The voltage...
Fiber Optic Link (CB14351E)
The operational ones used in this project are old types from National Semiconductor, since the...
Hearing Aid Amplifier (CB15116E)
This circuit is from a 1973 documentation, using germanium transistors common at the time. The...