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Old 8th September 2007, 12:12 AM   #1
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Join Date: May 2006
Default tube/op amp/class A buffers


Anyone have any thoughts on the best buffer to use in a LM3875?

I have seen the tube buffer schematics, Class A and op amp buffers. I do not see a tube/op amp one.

I am thinking about going with a single tube buffer but want to hear thoughts about specifics before I start designing/building.

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Old 8th September 2007, 01:17 AM   #2
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Join Date: Jan 2002

Here's one, just posted as an FYI as I haven't built or heard it. The 'upgraded' version Joe sells souldn't be hard to work out from the various FVP/RTP designs on the Vacuumstate site. They sound excellent for cathode follower style circuits (these I have built).
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