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Old 25th May 2003, 02:43 AM   #1
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Default Something new

Over on the Pass Labs forum the subject of the Alpha-X and BOZEN-X has been realy hot. But they rely on n and p chanel
fets. With tubes could we use a triode in inverted mode as the
complement of a regular triode.......

Hay! I just thaught it was worth thinking about.

Regards,

Bob12345678
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Old 25th May 2003, 03:53 PM   #2
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Default UNFORTUNATELY...

Hi,

Complementary tubes do not exist...although it would be great to have that kind of feature.

It would certainly make OTL amps much easier to design.

Alas,
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Old 25th May 2003, 08:57 PM   #3
dhaen is offline dhaen  Europe
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Hi,

That's as close as you'll get to a compliment. However, although the voltage amplified output signal comes out at a more negative voltage, it is in-phase with the input signal.

Is it useful?

Right, who's game?

Cheers,
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Old 25th May 2003, 09:24 PM   #4
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Default THE DEER HUNTER.

Hi,

A compliment is not a complement....

Quote:
However, although the voltage amplified output signal comes out at a more negative voltage, it is in-phase with the input signal
Not really sure I follow you on this one...are you refering to the typical OTL outputstage?

Quote:
Right, who's game?
I am running already...

Cheers,
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Old 25th May 2003, 10:29 PM   #5
dhaen is offline dhaen  Europe
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Default Inverted thoughts...

Quote:
Originally posted by fdegrove
Hi,
snip..

Not really sure I follow you on this one...are you refering to the typical OTL outputstage?

snip..

Cheers,
No Frank, I believe we're talking about this:


Click the image to open in full size.

From Steve Bench's site:

http://members.aol.com/sbench102/inverted.html

Cheers,
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Old 25th May 2003, 10:32 PM   #6
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Default YOU MIGHT...

Hi,

The inverted triode mode does not make for a nice complement...

Steve Bench?

I doubt our threadstarter is even remotely aware of that mode of operation, John.

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