555 driving a voltage multiplier. Mobile power ... The +12 volts should be regulated because it is used to power the mixer/osc, band control and AGC circuits. Although ... Diodes: 1N4148 about 12.6 to 14.7 volts depending upon engine speed. A standard ... Perhaps the easiest method of obtaining the desired voltage is to build a DC-DC converter designed around a powdered iron core as shown in Fig. 3.
|Title||:||73 Amateur Radio Today|