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Old 22nd July 2012, 06:54 PM   #1
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Default F6 Amplifier

ZM has been nagging me for information on the F6. I have a very nice
sounding prototype, but the design and the article that accompanies it
have some details remaining.

However, I can afford to put out this teaser:

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Old 22nd July 2012, 07:03 PM   #2
ide2003 is offline ide2003  Indonesia
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thank you papa, for another toy , and stories to follow..
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Old 22nd July 2012, 07:23 PM   #3
Zen Mod is offline Zen Mod  Serbia
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Baaaaad Papa !

........ just deleted 3 lines of typed text ; there is no use of it .......



boyzzzzz'n'girliez - take a good look at these two horizontally drawn resistors

edit : inserted picture , with two horizontal resistors



Click the image to open in full size.
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Last edited by Zen Mod; 22nd July 2012 at 07:34 PM.
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Old 22nd July 2012, 08:04 PM   #4
labjr is offline labjr  United States
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Interesting. Why the transformer?
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Old 22nd July 2012, 08:05 PM   #5
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Default looks promising

I am doing a similar thing with tube front and vfets output.
Not sure about the feedback setup.Will be an interesting read.
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Old 22nd July 2012, 08:14 PM   #6
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The Devil is in the details.

Having only n type output devices - reminds me of tubes.
Could a jFET be used as a phase splitter instead of the transformer ?

I take it the voltage gain stage would have active regulation
and the current section would have passive "regulation."

Last edited by Uunderhill; 22nd July 2012 at 08:19 PM.
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Old 22nd July 2012, 08:17 PM   #7
Zen Mod is offline Zen Mod  Serbia
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Quote:
Originally Posted by labjr View Post
Interesting. Why the transformer?


why not ?

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Old 22nd July 2012, 08:21 PM   #8
wl336 is offline wl336  United States
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seems like a jfet version of m2 to me...lol...looking forward to it
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Old 22nd July 2012, 08:48 PM   #9
flg is offline flg  United States
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Well, I do remember him saying it has interestingly different feedback
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Old 22nd July 2012, 08:56 PM   #10
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Quote:
Originally Posted by Nelson Pass View Post
ZM has been nagging me for information on the F6. I have a very nice
sounding prototype, but the design and the article that accompanies it
have some details remaining.

However, I can afford to put out this teaser:

oh man! I suck at transformers. Although i do have 4 on the way. What luck!
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