Just uploaded <a href="http://casperelectronics.com/finished-pieces/megaphone/cm2/cm2-bending/">schematics</a> for installing wet/dry balance in the <a href="http://casperelectronics.com/finished-pieces/megaphone/cm2/">CM2</a> model voice changing megaphone<p>
<a href="http://casperelectronics.com/images/finishedpieces/megaphone/CM2/wet-dryVolume4.jpg"><img src="http://casperelectronics.com/images/finishedpieces/megaphone/CM2/_wet-dryVolume4.jpg" width="399" height="436" alt="" title=""  /></a><p>
Lots more info available <a href="http://casperelectronics.com/finished-pieces/megaphone/cm2/">here</a>.