LED_Art
Member Since: December 7, 2010
Country: United States
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Here's an convenient charger for this battery. http://www.theledart.com/blog/?p=1917
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Thank you so much for the great tutorial. I've done quite a few done with a skillet, and think it's the best method for one-offs. You just know when to stop the heat.
Aki
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I haven't try the circuit, but R4 (220k ohm) seems too small for 9V supply. I'd increase it to may be 470k or even higher. You can see if you have the best value by reading the voltage at the Q1 collector. The voltage here should be about 3-4.5V when you don't have the sound coming in.
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After about 50 tries, I believe that the Captcha is not working correctly. Maybe onlt robots are getting through, not humans.
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I think so too. SF please correct this.
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Most devices allow 5% error in the specified supply voltage - 12.5V should be no problem.
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Got 3 of those and love them.
Output voltage is between 12.1 - 12.5V, that's within 5% of nominal output.
No public wish lists :(