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Re: TDA2822 ill treatment test!


Joe Puma
 

Thanks for taking one for the team Raj. ??????

On Mar 1, 2018, at 7:04 AM, Raj vu2zap <rajendrakumargg@...> wrote:


Having used TDA2822 for decades and never had a failure of any kind even with the chip running very hot,
I got this urge to short my uBitx audio output and see it the chip blows.

Power supply 13.6V
Current limit 2A

Touching the volume control leads produces a loud 50Hz hum. At this volume I directly shorted the wires
at the EP jack. The chip got mildly warm thats it.

No smoke or explosions ! I think that some may have got bad/defective/BY chips..

Cheers

--
Raj, vu2zap
Bengaluru, South India.




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