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Old 19th February 2005, 06:33 AM   #1
diyAudio Member
 
Join Date: Aug 2002
Location: United Kingdom
Default power follower

Dear Nelson and friends,
please see this attachment,does this topology works properly.anybody have experiance in this circuit.please have a look at this
renjish
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File Type: jpg power follower.jpg (37.7 KB, 384 views)
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Old 19th February 2005, 03:41 PM   #2
jeapel is offline jeapel  Canada
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Join Date: Sep 2003
Location: quebec
hi

first for a good power follower you need a
ccs (constant courant source) not just
a source resistor

and the best driver is a tube driver with
very low zout 50 ohm in my case

www.loginnovation.com/jeapel

bye
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Old 19th February 2005, 04:48 PM   #3
jeapel is offline jeapel  Canada
diyAudio Member
 
Join Date: Sep 2003
Location: quebec
maybe more explication

a source follower with ccs is very good :

gain=1
low distorsion without feedback
good widthband

but the sound is very neutral and to get a good
amplifier you need to add some personality :-) to
the sound

a good way is tube (triode not pentode) with
even harmonics

don t forget if you go with transfo you need a equivalent
low zout 100 ohm max. to drive your output follower

but for me sorry :-) double follower= double neutral sound

bye
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