strmnd
I am using your idea on my KT I am building. So far ai built a box for a visaton speaker, The box is not really a box though as I built the chamber inside to increase the back pressure and hopefully deflect it to the back of the box, then I am allowing it to go into a smaller chamber as I am hoping this will increase the pressure and allow me to get away with not using an amp. The smaller chamber then goes into the chamber holding the smoke oil. It works ok with a standard HL wick so if I change this and increase the smoke production I am thinking your idea is going to be bang on.
If nothing else it has added a viable way to dump that noisy little air pump. As I get closer to fixing my issues I'll send you some pics.
I'll control the on/off through programming the radio.
ORIGINAL: strmnd54
This is in the wake of the idea I had last week, about using the backpressure of a speaker as a pumping system for a smoke unit...<p class="MsoNormal"><![if !supportEmptyParas]><![endif]><o
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></p><p class="MsoNormal">It's one thing to test an idea on a bench; but making it work in a model is another ball game...</p><p class="MsoNormal">http://youtu.be/bQeaXl-PzUE</p><p class="MsoNormal">Nevertheless, I succeeded in mounting a small (but powerful) taigen speaker between the gearboxes of my H.L. Pershing; and couple it with the smoke chamber of a modified H.L. smoke unit.</p><p class="MsoNormal"><![if !supportEmptyParas]><![endif]><o
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></p><p class="MsoNormal">Since the idea came to me while I was working on a modification to boost the audio output of my tank; I blended both smoke and sound together…</p><p class="MsoNormal"><![if !supportEmptyParas]><![endif]><o
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></p><p class="MsoNormal">The audio modification is based on a 2 X 15 Watts Stereo Amplifier that I bought on E-Bay.
http://www.ebay.ca/itm/TDA7297F-Digital-Audio-Amplifier-15W-15W-Dual-Channel-Amplifier-DC-12V-Powered-/281005817053?pt=US_Home_Audio_Amplifiers_Preamps&a mp;hash=item416d407cdd&autorefresh=true#ht_356 7wt_954</p><p class="MsoNormal"><![if !supportEmptyParas]><![endif]><o
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></p><p class="MsoNormal">My original plan was to use only one channel to drive a taigen speaker mounted in the front of my tank.</p><p class="MsoNormal">I also connected my two batteries ( 5000 Mah NiMH) in serial; to get around 15 Volts to the Amp.</p><p class="MsoNormal"><![if !supportEmptyParas]><![endif]><o
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></p><p class="MsoNormal">For the new modification, I’m using the 2 channels to power 2 speakers…</p><p class="MsoNormal">Each channel has it’s own volume control; so I can set the volume of the rear speaker to get the level of smoke that I desire; and use the front speaker as a master for the overall sound level…</p><p class="MsoNormal"><![if !supportEmptyParas]><![endif]><o
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></p><span style="font-size:12.0pt;font-family:" times="" new="">Here’s a static video of the system…</span>
youtu.be/bQeaXl-PzUE<br type="_moz" />