Need to know about a MOS. FET output stage ( the Baby 300B) power amp plans - diyAudio
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Old 18th April 2007, 04:17 PM   #1
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Default Need to know about a MOS. FET output stage ( the Baby 300B) power amp plans

Hello

I would like to build this MOS. FET output stage ( it's named the Baby 300B) power amp from this web page ?

http://www.geocities.com/Tokyo/5913/ (click on the "MOS. FET output stage" )

Anyone did build it and test it for specs and on a spectrum analyser to see if it's odd or pair order distortion ?

What would you say any about it schematic ?

How good does it sound compared to a good tube amp ?

Can I use a high end OPA627 or OPA637 op-amp do boost the input sensitivity ?


Thank you

Gaetan, Canada
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Old 18th April 2007, 05:35 PM   #2
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Location: Ruda Śląska // Poland
this output stage have vlotage gain less than 1, if u want to have the amplitude +-30 on output, u must use preamp with +- 30V on output

like this http://www.geocities.com/Tokyo/5913/hybrid.html
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