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series regulated power supply with feedback for Nelson Amplifier
series regulated power supply with feedback for Nelson Amplifier
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Old 15th June 2012, 04:12 PM   #11
muddasirwaheedmalik is offline muddasirwaheedmalik  Pakistan
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Join Date: Jul 2010
so no nelson pass????
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Old 15th June 2012, 07:41 PM   #12
AndrewT is offline AndrewT  Scotland
Join Date: Jul 2004
Location: Scottish Borders
forget your feedback regulation.
regards Andrew T.
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Old 15th June 2012, 07:43 PM   #13
Boscoe is offline Boscoe  United Kingdom
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Join Date: Feb 2010
Location: England
Originally Posted by muddasirwaheedmalik View Post
so no nelson pass????
I don't like putting people off. If that's what you like then go for it! But if you want TRUE HIGH FIDELITY then there are much better ways of doing things!
Audio projects and more: gswdh.co.uk
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Old 17th June 2012, 10:07 PM   #14
CBS240 is offline CBS240  United States
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Location: K-town
Here is a simple series voltage regulator circuit I've used. No noisy Zeners. Use the power Darlington as the emitter follower. Adjust the values as needed for the voltages you are using.
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All the trouble I've ever been in started out as fun......
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Old 21st June 2012, 10:27 PM   #15
Loudthud is offline Loudthud  United States
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Location: Near Dallas Texas USA
What are the devices 4091 and 4117?

Since the Idss of a J201 is about 1mA, the beta of the output transistors must be huge.
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