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Thanks.. Transistors always confused me, NPN, PNP, .. one is reversed as the other if I recall.. Anyway, yes- 9v battery will be used. I'll check the specs on the LEDs. Many Thanks for your help.
Hello all,
I was asked by a friend to find a simple flashing LED circuit for his project. I found a cheap kit on ebay, and here is the schematic for it. **broken link removed**
However, I want to change the LEDs to the SMD type, for their small size, and also change one LED to blue. I have the...
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