Rumble filter (CB6541E)

This turntable filter was found on an 80's Elektor. The circuit makes use of operational features that are easily obtainable today.

| Clique na imagem para ampliar |

Rumble filter (CB6541E)
This turntable filter was found on an 80's Elektor. The circuit makes use of operational features...
Self-powered radio (CB20515E)
We found this circuit in a documentation from the 50's. The transistors are germanium types. The...
2-Transistor Commercial Radio (CB18387E)
We found the circuit for this commercial radio in Japanese documentation from the 1960s. The...