Function generator (CB7594E)

Found in a 90s 73 magazine for radio amateurs, this circuit makes use of common operational amplifiers.

| Clique na imagem para ampliar |

Bidirectional switch LTC1134 (CB14611E)
This circuit uses opposing MOSFETs operating on a 6 to 15 V input voltage. The circuit is from...
One Transistor Receiver (CB12846E)
This experimental receiver for the medium wave band uses a germanium transistor that can be...
Morse Messenger (CB21089E)
We found this circuit in a magazine 73 for radio amateurs from the 80's. The circuit makes use of an...