Quote Originally Posted by severnsider View Post
This is indeed the same as the Lyman "Turbosonic 2500" which retails for much more! "Turbosonic" indeed...... where on earth do they get those names from? I've nothing to compare it to but mine seems to work as long as I keep the buzzer (it doesn't seem particularly "ultrasonic" to me) going for more than five minutes.
A useful product is sold in 5 litre containers by Carbusonic Carbusonic Ltd - Ultrasonic Cleaning Products

The buzz sound is because the ultrasonic exitation is pulsed - the ultraconic bit of course you can't hear.