ultrasonic cleaner

[javor]

I have an idea to make myself an ultrasonic cleaner for cleaning of electronics PCBs. Anyone have an experience?

[casanova]

I made my homemade ultrasonic cleaner. In my experience, first you need a company that makes a tank. Avoid tank sizes being integer multiples of each other. My tank is 55 cm long, 30 cm wide and 21 cm deep. The sizes 55 : 30 : 21 are not integer multiplications. Also, avoid parallel walls of the tank. The walls should be conical or convex. This is important in order to eliminate the classic interference.
The transducers are usually at the bottom. Avoid having the distance between the transducer and a wall or other transducer an integer multiple of any other such distance.
The ultrasonic generator should have variable frequency and variable power.

[javor]

how did you fixed the transducer to the the tank?

[malinov]

What liquid do you use in ultrasonic cleaner for electronics? Where to get it?

[casanova]

ULTRA+ Ultrasonic Cleaner. Supplied by Allendale Electronics Ltd, Herts EN11, UK