Re: what kind of capacitor do I need? (preamp circuit)

Thanks lots - I will check those out...
If you just want to power your circuit with a 9V battery,
would components rated for 100V drain the battery more than you would
like,
or otherwise be overkill?
Thanks again

On Jul 19, 3:50 pm, Lostgallifreyan <no-...@xxxxxxxxxxx> wrote:
Mad Scientist Jr <usenet_daugh...@xxxxxxxxx> wrote innews:1184873792.984784.33040@xxxxxxxxxxxxxxxxxxxxxxxxxxx:

I would like to buy parts for this schematic
http://www.electronicsteacher.com/circuits-and-diagrams/audio-preamp-ci
rcuits/preamp.gif

I had a 0.1 uF ceramic disc capacitor laying around which worked, now
I want to make some more of this circuit and am not sure exactly which
type of capacitor to use. Searching mouser.com or digikey for "0.1 uF
ceramic disc capacitor" brings up a ton with all sorts of properties.
I basically want something that is cheap and reliable and general
purpose, so in case I have some left over I could use them for other
projects (probably 3-12v DC audio circuits, small robotic projects,
etc.) I would probably want to spend around $5-$10 and get somewhere
between 25-100 of them. Any help appreciated, thanks...

For small general purpose I like the tiny blue ones, epoxy coated ceramic.
Usually good for voltages to 100V, maybe a bit more. Values ranged from 22
pf to 0.47µF last time I looked. You can get cheaper, but if you want to
reuse easily in experiments, and still be left with something fit for
permanent wiring later, those things rule.


.

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