Push/Pull vs two tubes parallel (Single Ended)

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Theashe
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Re: Push/Pull vs two tubes parallel (Single Ended)

Post by Theashe »

You might find these helpful. I'm new to this as well.

http://www.valvewizard.co.uk/pp.html Edit: Oops, someone already posted this one.
http://www.blueguitar.org/new/text/thre ... Series.pdf
54Goldtop
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Re: Push/Pull vs two tubes parallel (Single Ended)

Post by 54Goldtop »

Matt do you realize that you've been rude and abrasive to nearly everyone here? If you don't have anything nice to say...
54Goldtop
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Re: Push/Pull vs two tubes parallel (Single Ended)

Post by 54Goldtop »

If answering a question creates so much anguish for you just pass on the thread, no need to ruin it for those that don't mind helping out and those simply trying to learn.
matt h
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Re: Push/Pull vs two tubes parallel (Single Ended)

Post by matt h »

(deleted)
Last edited by matt h on Fri Mar 27, 2015 2:30 pm, edited 1 time in total.
54Goldtop
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Re: Push/Pull vs two tubes parallel (Single Ended)

Post by 54Goldtop »

Expert Jerk says it all - Let's move on unless you feel the need to impress yourself more?
54Goldtop
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Re: Push/Pull vs two tubes parallel (Single Ended)

Post by 54Goldtop »

You talk out of both sides of your mouth Matt - You yourself admitted you were rude to Pete then in the same breath insinuated it was only me - I'm certain your just never wrong correct? I wish they had pills for your problem but I fear not -
matt h
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Re: Push/Pull vs two tubes parallel (Single Ended)

Post by matt h »

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Last edited by matt h on Fri Mar 27, 2015 2:30 pm, edited 1 time in total.
pdf64
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Re: Push/Pull vs two tubes parallel (Single Ended)

Post by pdf64 »

Threashe, that Steve Bench loadlines stuff is great, thanks!
Interesting that he concludes from loadline analysis that most class AB amps are more appropriately viewed as being class A.
As opposed (kind of) to Aiken's view that many amps regarded as class A are in reality class AB!
Here is some more by him http://diyaudioprojects.com/mirror/memb ... sbench101/
It's unfortunate that he seems to have kept a low profile (in this field at least) for a decade now.
https://www.justgiving.com/page/5-in-5-for-charlie This is my step son and his family. He is running 5 marathons in 5 days to support the research into STXBP1, the genetic condition my grandson Charlie has. Please consider supporting him!
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jazbo8
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Re: Push/Pull vs two tubes parallel (Single Ended)

Post by jazbo8 »

pdf64 wrote:Interesting that he concludes from loadline analysis that most class AB amps are more appropriately viewed as being class A.
As opposed (kind of) to Aiken's view that many amps regarded as class A are in reality class AB!
Just to throw another monkey wrech into the discussion... :wink: I am not sure how you reach that interpretation... What Stephie said was "[n]otice there is no "magic" of the transition from one class of operation to the next, but rather a gradual transition." Aiken said the same thing. All class AB amps operate in class A before transistioning into class B, therefore the name - class AB. :P You can of course design a pure class A push-pull output stage, but as Aiken has shown - AC30 isn't one of them.
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martin manning
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Re: Push/Pull vs two tubes parallel (Single Ended)

Post by martin manning »

After mulling this question over for a couple of days, here's my take on it. Criticism is welcome.
edit: small clarifying edits and grammar adjustments
You do not have the required permissions to view the files attached to this post.
Last edited by martin manning on Sat Dec 06, 2014 5:21 pm, edited 2 times in total.
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schaublin65
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Re: Push/Pull vs two tubes parallel (Single Ended)

Post by schaublin65 »

Hi

I'm kind of new to this forum. :D

Since this seems to be the right thread to ask for spoonfed information I was wondering if my amp works the same if it's upside down?

Please don't be harsh and abrasive if you reply :oops:

I'm much too lazy to read RDH3 & 4.

Take care....

John
54Goldtop
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Re: Push/Pull vs two tubes parallel (Single Ended)

Post by 54Goldtop »

Listen guys, I have done a substantial amount of reading prior to joining this forum - It's not as though I'm asking what a vacuum tube is - And still, I see allot of you still not agreeing on the answer to this complex question... Still not sure what's up with the attitudes.
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schaublin65
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Re: Push/Pull vs two tubes parallel (Single Ended)

Post by schaublin65 »

Hi.

http://www.tubebooks.org/technical_books_online.htm

Radiotron Designer's Handbook, Third Edition

Radiotron Designer's Handbook, Fourth Edition

Take care....

John
54Goldtop
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Re: Push/Pull vs two tubes parallel (Single Ended)

Post by 54Goldtop »

May thanks John - I do appreciate the help.
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schaublin65
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Re: Push/Pull vs two tubes parallel (Single Ended)

Post by schaublin65 »

Hi

RDH4 page 570. And the next few.

Take care....

John
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