June 6th 07, 05:30 AM
posted to alt.music.makers.electronic,sci.electronics.basics,sci.electronics.components,rec.radio.amateur.homebrew,rec.radio.shortwave
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First recorded activity by RadioBanter: Jul 2006
Posts: 837
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small variable capacitors (measured in uF)? measuring capacitance?
On Tue, 05 Jun 2007 22:25:28 -0000, Mad Scientist Jr
wrote:
I would like to hook up a variable capacitor to some audio circuits I
built for learning about synths and amps
(schematics are he
http://www.geocities.com/usenet_daug...generators.htm )
http://www.runoffgroove.com/littlegem.html
http://www.runoffgroove.com/ruby.html
http://makezine.com/09/crackerboxamp/
)
because in some of these the capacitors change the pitch, tone or
other qualities.
These circuits run off a 9V battery and use capacitors with ratings
such as
220 uF
100uF,
0.1 uF,
0.01 uF
0.047 uF
so I would want variable caps in this range.
Do these exist? Online all I am seeing is ones rated in pF.
Also, assuming I find these, and get them working in the circuit, and
find a desired setting for a capacitor, how do you measure the
capacitance? I have a multimeter but have really only used it to
measure ohms.
Thanks...
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