Tube buffer gainclone

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branet

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Tube buffer gainclone
« on: 5 Jun 2010, 05:10 am »
Does someone has a scheme for tube buffer gainclone with LM3886 and perhaps in bridge that there are about 100 w per chanale?
Or something like that.
Thanke you?

planet10

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Re: Tube buffer gainclone
« Reply #1 on: 5 Jun 2010, 06:12 am »
Here is the mother-thread for tube buffered gainclones. A search will show up many more including 3886 units

http://www.diyaudio.com/forums/chip-amps/9557-tube-power-ic-output-stage-jlti.html

dave

roymail

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Re: Tube buffer gainclone
« Reply #2 on: 7 Jun 2010, 01:02 am »

planet10

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Re: Tube buffer gainclone
« Reply #3 on: 7 Jun 2010, 01:26 am »
Note that the transformer suggested in that thread extracts the maximum power into 8 ohms, and makes it not all that great for lower or more complex impedances. 25V rails (18-0-18 transformer) is about ideal if you intend to drive 4 ohms or your speakers have a complex load.

I recommend a separate higher voltage supply for the tube. 60-75 Volts is good for the 6DJ8/ECC88.

dave