MW Receiver ZN416E (CB20680E)

Found in a Popular Electronics from the 90s, this circuit makes use of an unusual integrated today. The coils are for the medium wave range.

| Clique na imagem para ampliar |

30M ohm JFET stage (CB6964E)
Suggested by an American technical documentation, this circuit is polarized in order to provide an...
Modulated Siren 4001 (CB24354E)
This modulated siren was found in the December 1974 issue of Radio Electronics magazine. A higher...
Mixer with FET Operational (CB1291E)
This circuit with 5 times gain was found in European documentation from the 1980s. The input and...