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Old 14th July 2005, 11:15 PM   #1
kopite is offline kopite  New Zealand
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Default Phase splitter transformers

Has anyone built this circuit http://www.geocities.com/n9zes@sbcgl..._EL84_reva.pdf
It looks a very simple circuit without a phase splitting tube, notice that there is no feedback aslo no bypass cap across the combined cathode resistor. What are the pitfalls if any here?
The 6AU6, an unusual tube to use in audio wired as a triode. Would the output pair need to be matched?
How good would the phase splitter trandforner need to be, it is the PS2A-N (n for nickel)
The circuit is from the Electra Print Audio site.
What other front end tubes could be used giving the same drive requirements?
How do you think it would sound?
Your comments would be appreciated as I have ordered the parts to build it.
Phil.
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Old 15th July 2005, 05:08 AM   #2
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I am no expert but that looks like a center tapped choke rather than a transformer. If you used a transformer you wouldn't need the coupling capacitor. I might be tempted to try something like that but I would probably be thinking along the lines of using a transformer and hooking the output tubes up as triode strapped rather than UL.

I'll leave it to someone who knows what they are talking about to suggest any pitfalls of this design.

mike
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Old 15th July 2005, 06:50 AM   #3
Gluca is offline Gluca  Italy
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That circuit by Jack Elliano has been reported to soud great and it is so simple and cheap. I considered many times to build it.

Ciao
Gianluca
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