[zoeper]

Does anyone here have experience with ultrasonic cleaners?
I am in need of a unit that can handle loads of up to 4lb.
Is it something i can build myself? I would presume that it would be fairly simple to build the wave generator and amplifier, but what do they use as a resonator?
Any thoughts welcome.
Pieter

[zoeper]

I am going to start experimenting by building a wave generator and amplifier to drive some piezoelectric siren units. Does anyone know amplitude, waveform and frequency range these are capable of?

[eSilviu]

I am going to start experimenting by building a wave generator and amplifier to drive some piezoelectric siren units. Does anyone know amplitude, waveform and frequency range these are capable of?

220Vac + rectifier + half bridge controlled with 45kHz + piezo speaker for 45kHz + aditional items = ultrasonic cleaner.
(I've opened recently one unit)

[MBG]

I would like to see how these thread ends up. I am interested in this.

Also, I always used crest ultrasonic cleaners