 Ring Launcher
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Part Scavenger
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Thu Sept 14 2006, 09:56PM
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Registered Member #79
Joined: Thu Feb 09 2006, 11:35AM
Location: Arkansas
Posts: 673
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Cause I don't have any of those and shipping is killer...
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ragnar
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Fri Sept 15 2006, 01:20AM
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Registered Member #63
Joined: Thu Feb 09 2006, 06:18AM
Location:
Posts: 1425
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They're pricey, too -- like $6 at my local Jaycar store...
I've fiddle with a few of them though, they're not bad. The LM3914/3915 are fun for VU meters. =-)
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Steve Conner
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Fri Sept 15 2006, 09:35AM
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Registered Member #30
Joined: Fri Feb 03 2006, 10:52AM
Location: Glasgow, Scotland
Posts: 6706
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You used to be able to buy a commercial 20 LED bargraph meter kit that was totally made out of LM324s and resistors. I used to have a stack of 20 of the things with a huge display of about 400 LEDs, that I found while dumpster diving. I think it was someone's home-made audio spectrum analyser. I never got it to work though, I think the analysis filter bank was missing.
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