Dual supply for DOZ / JLH? - diyAudio
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Old 19th October 2007, 08:17 AM   #1
jnb is offline jnb  Australia
diyAudio Member
Join Date: Dec 2006
Default Dual supply for DOZ / JLH?

So, what's up with that? It doesn't seem so popular.

I would accept the need to use output protection without the coupling cap. Is it just a matter of tweaking the output offset and slow closing the output relays?
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Old 20th October 2007, 11:07 AM   #2
jnb is offline jnb  Australia
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Join Date: Dec 2006
OK, it took over an hour of searching but I came up with this one example.


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Old 20th October 2007, 12:48 PM   #3
Geoff is offline Geoff  United Kingdom
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Join Date: Apr 2001
Location: UK
There are many examples of dual supply rail JLH Class-A amps both on this forum and on the web. For a start, see my website:


The 1996 and subsequent versions are all dual rail and the 1969 original can easily be converted to dual rail, see Rudy Van Stratum's contributed article.
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