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Old 23rd March 2005, 12:02 PM   #1
jsteigs is offline jsteigs  Japan
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Default output buffer for GC question

Is there a way to buffer the output of a gainclone like with a transistor or a MOSFET? if so, how would you bias it? or is the signal already to large to be sent into another amplifier?
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Old 23rd March 2005, 12:10 PM   #2
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Can you describe more what your goal is? Do you really want to feed an another amp with a 10-20 VAC signal as an input signal?
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Old 23rd March 2005, 01:37 PM   #3
GregGC is offline GregGC  Canada
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Default Re: output buffer for GC question

Quote:
Originally posted by jsteigs
Is there a way to buffer the output of a gainclone like with a transistor or a MOSFET? if so, how would you bias it? or is the signal already to large to be sent into another amplifier?

Use a resistor divider if the signal is too big. That's all you need according to the little info we have.

Greg
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Old 23rd March 2005, 02:17 PM   #4
shusha is offline shusha  Croatia
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Yeah, right. Let's amplify the signal at the reasonable level, then drop the voltage across resistor, disipate enough heat around and then again amplify through mosfet. I think jsteigs give himself an answer in his last sentence.

I assume that hidden attention is to make PA system from Gainclone amp.
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Old 24th March 2005, 08:16 AM   #5
jsteigs is offline jsteigs  Japan
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all i'm trying to do is amplify the signal a little more after the GC amp but i guess from all of your replys, it cant be done without wasting power.
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Old 24th March 2005, 11:06 AM   #6
Franz G is offline Franz G  Switzerland
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Maybe, this application note is interesting for you:

AN 272

Regards
Franz

BTW: I love the "Undestructible, Floating Output Booster on page 6/7: a tube amp
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