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Time Machines & Experiments
Help! HDR electromagnet output?
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<blockquote data-quote="chevron694" data-source="post: 193476" data-attributes="member: 8876"><p>Unlimited white light? Haha. I don't know about a luminous but I wouldn't hook a speaker to the output. Mostly do to the fact when I look at the schematics there really isn't much between the 120 voltage from the mains and the output to drop the voltage other then the three pots and the resistance from the inductive loads which are the coils. The output voltage is proabaly a higher voltage than the speaker is rated for which could damage the speaker. Plus, the speaker has a much lower inductance then Steve's electromagnet. Has anyone ever put a DMM on the output of the HDR to measure the output voltage or current? Has anyone put an inductance meter on the coil?</p><p></p><p>As for sound, well white noise is a bit ambiguous. White noise is just randoms siginals having different intensity at diffrent frequencies. The HDR is generating a pretty constant output signal unless you have a lot of harmonics on your mains.</p><p></p><p>If your looking to make noise and wanted to connect a speaker I suggest put a resistor in line or audio transformer to step down the voltage and not turning on the "AMP". Again, looking at the schematic it dosen't put the smoothing Capacitor in circuit for the output. I imagen it may make a consistent low hum varying slightly depending on how you play with the potentiometers.</p></blockquote><p></p>
[QUOTE="chevron694, post: 193476, member: 8876"] Unlimited white light? Haha. I don't know about a luminous but I wouldn't hook a speaker to the output. Mostly do to the fact when I look at the schematics there really isn't much between the 120 voltage from the mains and the output to drop the voltage other then the three pots and the resistance from the inductive loads which are the coils. The output voltage is proabaly a higher voltage than the speaker is rated for which could damage the speaker. Plus, the speaker has a much lower inductance then Steve's electromagnet. Has anyone ever put a DMM on the output of the HDR to measure the output voltage or current? Has anyone put an inductance meter on the coil? As for sound, well white noise is a bit ambiguous. White noise is just randoms siginals having different intensity at diffrent frequencies. The HDR is generating a pretty constant output signal unless you have a lot of harmonics on your mains. If your looking to make noise and wanted to connect a speaker I suggest put a resistor in line or audio transformer to step down the voltage and not turning on the "AMP". Again, looking at the schematic it dosen't put the smoothing Capacitor in circuit for the output. I imagen it may make a consistent low hum varying slightly depending on how you play with the potentiometers. [/QUOTE]
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Help! HDR electromagnet output?
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