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Old 24th August 2012, 08:49 PM   #1091
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Quote:
Originally Posted by Loudthud View Post
The first time I saw a design like the F6 came from this Delco application note:

http://www.updatemydynaco.com/Histor...lco100Watt.pdf

I remember at the time I didn't have a clue how to make a +/- 50V power supply.
Thank you for that URL. Where are the button "Historic Documents" about
Update My Dynaco
for getting the overview?
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Old 24th August 2012, 09:26 PM   #1092
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Quote:
Originally Posted by tiefbassuebertr View Post
Thank you for that URL. Where are the button "Historic Documents" about
Update My Dynaco
for getting the overview?
I don't know how to find other documents. You might just try truncating the URL. I used a Google search that took me right to it. I think I originally saw the amp schematic in Popular Electronics without the power supply.
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Old 24th August 2012, 09:53 PM   #1093
lhquam is offline lhquam  United States
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Originally Posted by buzzforb View Post
It was raw current. Happened so fast it didn't even burn. Gotta love that kind of potential.
That's why I use current limited bench supplies for testing.
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Old 24th August 2012, 09:57 PM   #1094
Zen Mod is offline Zen Mod  Serbia
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Update My Dynaco

btw. - aren't we going in circles , for quite some time ?

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Old 24th August 2012, 10:07 PM   #1095
generg is offline generg  Germany
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Quote:
Originally Posted by Zen Mod View Post
Update My Dynaco

btw. - aren't we going in circles , for quite some time ?

Circle walking is a very famous martial arts technique called bagua zhang....

as long as Papa is not disturbing us, we circle on.....



Click the image to open in full size.
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Old 24th August 2012, 10:08 PM   #1096
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I took the time this morning to review my history of posts in this thread,
and I conclude that you would benefit from some additional information.

Notice the particular placement of capacitors, resistors, and transformer
secondaries which give greater output DC offset stability without
sacrificing the symmetry of the two halves at AC.

Attached Images
File Type: gif F6 SCH LES SIMPLE.gif (30.1 KB, 304 views)
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Old 24th August 2012, 10:16 PM   #1097
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just for the record - "high" means "plenty" ?
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Old 24th August 2012, 10:21 PM   #1098
Zen Mod is offline Zen Mod  Serbia
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Quote:
Originally Posted by generg View Post
Circle walking is a very famous martial arts technique called bagua zhang....

....
yup

but bagua zhang certainly doesn't include increasing level of confusion

NB that I certainly had my deal in same ........ (confusion , not bagua zhang )
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Old 24th August 2012, 10:29 PM   #1099
generg is offline generg  Germany
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Quote:
Originally Posted by Zen Mod View Post
yup

but bagua zhang certainly doesn't include increasing level of confusion


Quote:
Good answer, indeed it clarifies...!
NB that I certainly had my deal in same ........ (confusion , not bagua zhang )
Yes, but never a thread was so productive before Nelson published the circuit...
I have great respect in your "circling"

And Nelson showed mercy just now, very fine coincidence......

Now circling can start again in the other direction.....
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Old 24th August 2012, 10:33 PM   #1100
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Thanks Nelson.
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