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#1 |
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diyAudio Member
Join Date: Jun 2007
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Does anyone know how to calculate the gain of this amp?
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#2 |
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R.I.P.
Join Date: Dec 2001
Location: Schaffhausen Switzerland
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The tube stage has zero gain (x1), as it's a pushpull cathode follower sitting on a current source.
The MOSFET stage I can't make any sense out of - where's the load in that weird drawn schematic? Are the loads meant to be the two boxes marked "0.5"?? Simulation schematics don't mean much to real engineers... Regards, Allen |
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#4 |
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R.I.P.
Join Date: Dec 2001
Location: Schaffhausen Switzerland
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He almost never answers questions by email.
Can't help you with a simulation circuit. His real circuit makes a little more sense - but I believe he almost never builds any of these circuits he publishes, so why chase fairies? There are hundreds of great proven circuits out there. Regards, Allen |
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#5 |
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diyAudio Member
Join Date: Feb 2006
Location: Ashland,Ky U.S
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There are several SS amps that use this output stage I have seen posted around here from time to time. Successful commercial amps at that. Sorry I cant recall the names of them at the moment.
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#6 | |
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diyAudio Member
Join Date: May 2007
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Quote:
.The schematic(with or without simulation) doesn´t make sense anyway...... Last edited by revintage; 22nd November 2009 at 08:51 AM. |
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#7 |
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diyAudio Member
Join Date: Sep 2008
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#8 |
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diyAudio Member
Join Date: May 2007
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Ooops,
Checked the Broskie article and it seems that there is some sense afterall .
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#9 |
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diyAudio Member
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I believe that circuite has 6db gain. If you look at broskie's article on power boosters
he describes a push pull power follower circuite where the output is grounded and the output is taken from the junction of the + and - power supplys. That changes the push pull follower from unity gain to 6db. |
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#10 |
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diyAudio Member
Join Date: Jun 2007
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Woody,
How do we get 6dB? Regards Atiq |
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