Bad Colpitts osc Waveform
Well, offhand, I don't like the way the base is biased... That
transistor will be clamping on the negative voltage swing which probably
answers why the waveform is so poor.
If you make a voltage divider for the base voltage, the transistor
oscillato ought to give a better waveform.
Perhaps something like 27K from +12 VDC to the basen, and 9.1 K from base
to ground.
This should improve the waveform shape....
Jim Pennell
N6BIU
--
11:40 Pacific Time Zone
Jan 21 2007
International Time
19:40 UTC
21.01.2007
|