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Ted205 11th August 2008 10:34 AM

Chipamp PS audiosector PS
I've managed to pop my BrainGT 3886 chip again. I have 2 spare BrainGT "Snubberized" power supply boards.

I'm thinking of trying the audio sector LM4780 Amplifier Kit.

Will i be able to power them from the "Snubberized" power supply (+&-33v)

AndrewT 11th August 2008 11:04 AM

popped my chipamp
wrong voltage, careless fiddling, oscillation, small heatsink, which?

Ted205 11th August 2008 11:11 AM

wrong voltage polarity

Peter Daniel 11th August 2008 01:10 PM

Re: Chipamp PS audiosector PS

Originally posted by Ted205
Will i be able to power them from the "Snubberized" power supply (+&-33v)
Yes, of course, that supply will work with all my kits as well.

Ted205 11th August 2008 01:48 PM

thats good news. Do you provide the just the amp pcbs ?

The rail voltage is at 36v will this be ok for the LM4780 kit ?

Peter Daniel 11th August 2008 01:59 PM

Yes, that voltage is fine. LM4780 is exactly 2 x LM3886 in one chip:

A single amp board (good for one LM4780 chip) is $10. It allows stereo application and is basically the same as 2 x LM3886 amp boards.

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