Introducing the X-GainClone - diyAudio
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Old 9th February 2003, 09:26 AM   #1
Bricolo is offline Bricolo  France
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Default Introducing the X-GainClone

I've not tested it, nor build it yet.

It's only an idea I had this morning, and I played with it on simmetrix.

Values aren't critical, and certainly not the best ones.
Gain is 44 (33dB)
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Old 9th February 2003, 12:37 PM   #2
Sheriff is offline Sheriff  United Kingdom
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Hi Bricolo,

Do you have the full version of simetrix, or are you using the demo?? If so how much did you pay for it if you dont mind me asking.

Cheers

Sheriff
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Old 9th February 2003, 12:38 PM   #3
Bricolo is offline Bricolo  France
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I use the demo
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Old 9th February 2003, 05:06 PM   #4
UrSv is offline UrSv  Sweden
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I think existing suggestions from Nelson suggests that the X works with a small number if stages only and 3 kind of being the limit. If there are too many stages you would get the "infinite hall of mirrors" effect.

Nothing wrong in testing though. Simple enough to build and if doesn't work then it doesn't work.
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Old 9th February 2003, 07:58 PM   #5
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It will work, but it won't be an X circuit. The error of one
half is reproduced with the wrong phase to cancel.

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Old 9th February 2003, 08:05 PM   #6
Bricolo is offline Bricolo  France
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Quote:
Originally posted by Nelson Pass
It will work, but it won't be an X circuit. The error of one
half is reproduced with the wrong phase to cancel.


Ah! That's why lowering the "crossed resitors"'s values increased the gain


As a correction, I don't see anything else that connecting the "crosses resistors" to the non inverting inputs (that won't be connected to ground anymore, but certainly to a grounded resistor)

Another idea, Mr Pass?
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Old 9th February 2003, 10:47 PM   #7
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My other idea involves using real transistors instead of
girly-man chips.
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Old 9th February 2003, 10:53 PM   #8
ststone is offline ststone  United States
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I like my chips with vinegar
Thanks for the switches...
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Old 9th February 2003, 11:08 PM   #9
Pan is offline Pan  Sweden
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Hmm.. I donīt get it, to me it seems like the errors actually will cancel as the chips is in inverted mode... no?

/Peter
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Old 10th February 2003, 06:46 AM   #10
Bricolo is offline Bricolo  France
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I hope this is the good one


PS: Nelson:
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