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An electronics puzzle...	by MrTrick	2006-11-19 12:55:59
Based on a quick Ohms Law calculation	by radiowave911	2005-12-19 18:48:51
Yup...	by MrTrick	2005-12-19 18:55:11
You could always try a multi-turn trimmer	by radiowave911	2005-12-19 19:05:35
in place of the resistor. This will allow you to tewak the values. YOu can also try 1% resistors for the 1M units. At the voltages you are talking, even a small change in resistance can have a major effect. The cap should help smooth out the pulses and give you a nice variable voltage. As for value, those calculations were always my biggest problem. I still have problems when I have to calculate the best cap value for a particular function. The only thing I can do with any degree of accuracy is calculate a time constant, RC. I don't have my references handy to look up the exact calculation needed. A simple TC calculation says that a 10nF cap with a 10.2523k resistor gives a time period of 102.523uS, whch translates to a frequency of 9.754kHz, if I recall the calculations correctly.
[ Reply ]
Yeah, so I'll be safe.	by MrTrick	2005-12-19 19:13:33
Something you may run into is a	by radiowave911	2005-12-19 19:22:11
It'd better not!	by MrTrick	2005-12-19 20:06:20

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