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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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mist maker
Our shops are currently full of halloween stuff, amongst which is a plastic
cauldron of cold water that has mist cascading out of it, they cost £35+ without the cauldron. Anyone got a schematic for one ? from what I can find so far, they have a small ceramic disk which vibrates ultrasonically and creates the mist. I am considering a piezo sounder fed with 40KHz @ 9volts say, with the disk just below the water surface ? what do you reckon ? -- Pete Cross |
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"Pete Cross" 1@2 wrote in message ...
Our shops are currently full of halloween stuff, amongst which is a plastic cauldron of cold water that has mist cascading out of it, they cost £35+ without the cauldron. Anyone got a schematic for one ? from what I can find so far, they have a small ceramic disk which vibrates ultrasonically and creates the mist. I am considering a piezo sounder fed with 40KHz @ 9volts say, with the disk just below the water surface ? what do you reckon ? Sounds to me like an ordinary Ultrasonic Humidifier here in the USA. Cost $30 - $40 USD , then feed the output to your Halloween setup. H. R. (Bob) Hofmann |
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