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Thanks for the instructable - I made it with 10 LEDs in parallel. Couldn't get it working with a phone though, not enough power I presume - any advice to adapt for phone use would be appreciated.I also got the "speaker" version working with the LM386 (following the circuit diagram and using .5W, 8Ohm speaker and trying out different resistor values) but it would only pick up loud sounds spoken directly into the speaker - again, any advice to improve sensitivity would be appreciated.I
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Thanks to Travomatic's edits! I made it with a pair of 2W speakers! Delighted!
Thanks so much for including the line numbers of the changes you made - I missed one and got an unrelated error message and was totally flummoxed!!
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