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Old 26th November 2012, 07:23 PM   #1411
AndrewT is offline AndrewT  Scotland
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I think the capacitor should be the AC link between the VAS and it's current source/sink. The left diagram.
But others have said the capacitor should be across the bases of the output stage. The right diagram.

Two viewpoints.
Maybe careful experimentation and/or simulation to discover what the experiment should be trying to reveal.
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Old 26th November 2012, 09:06 PM   #1412
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AndrewT

I didnt know D. Self talks about this (I need to get his book), but here is an analysis on the same by Hawksford, thought you might enjoy it (if you havent seen it).

If the cap is intended to speed up the base charge removal then it should be closest to the drive transistors (the right) but since the resistor is only on the order of 10 ohms I dont think it matters signficantly.

Thanks
-Antonio
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Old 27th November 2012, 09:51 AM   #1413
AndrewT is offline AndrewT  Scotland
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Thanks Mag,
I had read that before but forgotten about it. 1984 just predates D.Self.

I can't save the pdf.
Have you protected it in some way?
Anyone else know how to save the pdf?
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Old 27th November 2012, 11:52 AM   #1414
Vostro is offline Vostro  South Africa
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Quote:
Originally Posted by AndrewT View Post
Thanks Mag,
I had read that before but forgotten about it. 1984 just predates D.Self.

I can't save the pdf.
Have you protected it in some way?
Anyone else know how to save the pdf?
Right click link above and choose Save traget as..
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Old 27th November 2012, 12:04 PM   #1415
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Default I am retuning the MKIII Hx

Soon i will publish..... gimme a couple of days.

regards,

Carlos
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Old 27th November 2012, 01:59 PM   #1416
wiljj78 is offline wiljj78  Philippines
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Quote:
Originally Posted by destroyer X View Post
Soon i will publish..... gimme a couple of days.

regards,

Carlos
Yeeeeeesssssssssssss!!!........
A powerholic like me will really love you more Uncle Charilie....

I hope this time the upgraded MKIII Hx will be tune up the way like Super A or even more better....

Rock on Uncle Charlie.....

Regards,
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Old 27th November 2012, 03:12 PM   #1417
AndrewT is offline AndrewT  Scotland
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right click does not give "save target as".

But since I rebooted the PC the file - "save as" is now working again. The icon for "save" is still greyed out.
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Old 27th November 2012, 04:19 PM   #1418
Vostro is offline Vostro  South Africa
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Hmm I cant explain why, Im using IE9,
Ive zipped it maybe more luck with this one.
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Old 27th November 2012, 05:41 PM   #1419
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Default Too many guys asking...i would like not to get back to this amplifier

But i cannot say no to so many folks that are sending emails.

I am already doing...will tune it even better.... sound will be better and different...more tube alike.

regards,

Carlos
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Old 27th November 2012, 06:09 PM   #1420
a.wayne is offline a.wayne  United States
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Ahhhhh .......... Xmas is near .....
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