Hi,
I found this circuit for a "light up drum kit" and Im pretty sure I wired everything according to the shematics. But something doesnt work and I suspect that the shematics are wrong.
the Problem is with the Ohm Trimmer that adjust the duration. It doesnt work. When I turn it completly off, the lights will turn on for a millisec when triggered, when I turn the Trimmer a bit the lights will go on when triggered but not turn off anymore. Also the 555Timer gets really hot.
Do the shematics appear to be correct or is there something wrong? pin 6, 7 and the trimmer being connected appears quite strange to me actually
Here is a picture of my wiring
I found this circuit for a "light up drum kit" and Im pretty sure I wired everything according to the shematics. But something doesnt work and I suspect that the shematics are wrong.
the Problem is with the Ohm Trimmer that adjust the duration. It doesnt work. When I turn it completly off, the lights will turn on for a millisec when triggered, when I turn the Trimmer a bit the lights will go on when triggered but not turn off anymore. Also the 555Timer gets really hot.
Do the shematics appear to be correct or is there something wrong? pin 6, 7 and the trimmer being connected appears quite strange to me actually
Here is a picture of my wiring
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