Buffer for VFO (CB7282E)

This circuit was obtained in a Popular Electronics from the 90's. The gain depends on R4 and R3. Transistors are general purpose types.

| Clique na imagem para ampliar |

Dial Tone Generator (CB5984E)
This circuit is from an old documentation making use of a 3,579,645 MHz analog color television...
600 mA Step Down DCDC Converter (CB12949E)
The circuit shown in the figure is suggested by Intersil (www.intersil.com) and makes use of the...
Voltage Divider for Dual Supply (CB400)
This circuit split the voltage of a Power supply allowing it to be used as dual supply. The limit...