Frequency Generation

[CrazyEwok]

Does anyone out there know of a circuit that can be built that will allow me to adjust the frequency of VDC? A PWM is not what i am looking for. i am looking at pulsing high voltage DC at high Frequency (KHz or even MHz) but i want to control it with as fine tuning as possible.

[sucahyo]

Look for multivibrator circuit, replace the resistor with some different value of variable resistor in series. This should allow fine tuning up to MHz range. It just need two identical transistor and two capacitor.

But I can't help you yet, still fail to make my multivibrator keep on running without destroying it right now .

[pese]

FOR ALL
that want to know
MORE
from electronics:

http://www.ibiblio.org/kuphaldt/electricCircuits/


Volume I - DC

Volume II - AC

Volume III - Semiconductors

Volume IV - Digital

Volume V - Reference

Volume VI - Experiments

be happy

GP