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Ultrasound "disruptor" circuit repair

12/13/2007 10:20 PM

I've an older model Bransonic III ultrasound cell disruptor which has quit working.

I can find no circuit plans anywhere, and am somewhat loathe to blunder thru

it's innards randomly, although it is mostly discrete components rather than IC

based, so I could conceivably do it, maybe.

Anyone have any leads to where I may find either a circuit plan, or ?? any other advice?

thankewverimuch,

david

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#1

Re: Ultrasound "disruptor" circuit repair

12/14/2007 9:38 PM

I recall discovering that an ultrasonic sounder I was repairing was basically an RF Ckt feeding the RF to an Ultrasonic evice?

Can this help?

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#2

Re: Ultrasound "disruptor" circuit repair

12/14/2007 9:45 PM

I also recall having repaired a few Branson Sonifiers back in the day at MSDQ that were used to break-up some polymer I guess. And also some Sonifiers over at Harvy Hubbel. I am sure that each contained an RF stage just before the amp. The RF was injected to US device resulting in that peculiar sound that US devies make...annoying little things!

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#3
In reply to #2

Re: Ultrasound "disruptor" circuit repair

12/14/2007 11:27 PM

often the glue that holds the piezo element to the tank has failed and an air gap has appeared. Coupling drops to under 1%.

Removel, clean and resilicone..

http://www.bransonic.com/ also e-mail them and ask.

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#4

Re: Ultrasound "disruptor" circuit repair

12/17/2007 7:03 PM

Thank you for your help!

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