40 meters band CW transmitter (CB8730E)

We found this circuit in a 90s 73 magazine for radio amateurs. The circuit has 3 W of power and can use modern equivalent MOSFETs.

| Clique na imagem para ampliar |

3 to 20 MHz XTAL Oscillator (CB13870E)
We found this oscillator in a publication for radio amateurs from the 70s. The circuit generates...
Rhythmic Sequential (CB18165E)
We found this circuit in a 1982 publication, but all the components used are still common in our...
Symmetric 12 V x 80 mA Power Supply (CB13356E)
We found this circuit in a 1976 technical documentation, but it can be assembled with modern...