Originally posted by Bodkins
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the draw on the 555 is very low i have two resistors so its trigger at the 2n3055 at 1volt i cant read the amp draw my meter will not go so low!
check the link
555 Noise-Maker Kit > Maplin
it got a FET and a has a varible resistor biuld in gos from 20 Hz - 20 kHz which is crap for the small ajustment that we need. Not try ajusting the frequency.
light out is very low, my coil is to big all we need is a small one that can move the reed switch and not pull the power out of the pulse. thats why i think 555may work there, but two will be tricky.
would your relay work there?
Magnet placement.
your have a north pole coil pulse with the magnet pushing the reed together.
them your move the reed across the coil one part of the reed across the coil one part coming at right angle sticking out.move the magnet watch the video its easy.
was thinking of try one on the back of the coil two with another negative from a nickal rode in the ground(earth battery stuff) or from the change battery.
got to go
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take care B[/QUOTE]
Yes you can insert the relay on the negative side as well as the positive side. But in your particular circuit you would be switching both the negative and the positive and the timing could be pretty difficult on that. I havent studied that area very deeply but maybe someone else here in the forum would have more experience in this area to help consult you.
ps : listened to the music sounds excellent
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