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Old 30th January 2004, 06:39 AM   #1
SY is offline SY  United States
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Default Ugly prototype contest

I was amused to see some good-natured jibes in Phred's direction in another thread; the subject was a prototype that he made. Particularly amusing to me, since if that's his worst, it's better than my best. Compound that with EC daring me to show my work, and it can mean only one thing: ugly prototype contest!

Now, I have to admit that I'm terribly impressed with the quality and appearance of so much of the work shown here by the members. A lot of it is real audio eye-candy, masterpieces of design and execution. I'm in awe of the guys who can pull that off. This contest is for the rest of us.

My first entry dates from a few days ago, during a discussion of the influence of an input tube's cathode source impedance on feedback ratios. It's the Mullard input stage, executed as only a real artist like me can:
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And while they may not be as strong as apes, don't lock eyes with 'em, don't do it. Puts 'em on edge. They might go into berzerker mode; come at you like a whirling dervish, all fists and elbows.
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Old 30th January 2004, 06:41 AM   #2
SY is offline SY  United States
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My second entry, looking at the effect (or lack thereof) of operating points and mu on constant-current diff amps. It's what prompted EC's dare. Here ya go, buddy!
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And while they may not be as strong as apes, don't lock eyes with 'em, don't do it. Puts 'em on edge. They might go into berzerker mode; come at you like a whirling dervish, all fists and elbows.
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Old 30th January 2004, 07:00 AM   #3
Vivek is offline Vivek  India
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Really ugly but nice.
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Old 30th January 2004, 07:55 AM   #4
UrSv is offline UrSv  Sweden
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Very neat. I especially like the star ground and separation of signal and supply...
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Old 30th January 2004, 08:25 AM   #5
Bricolo is offline Bricolo  France
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My gainclone prototype
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Old 30th January 2004, 09:44 AM   #6
Will is offline Will  Malaysia
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You can't beat mine I tell Ya !!!
Valve Buffered Inverted GC
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Old 30th January 2004, 09:45 AM   #7
Will is offline Will  Malaysia
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here it is
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Old 30th January 2004, 09:53 AM   #8
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Default You guys are not going to

believe this but I would put you all to shame!

my prototypes are truly worse. They are that bad that my wife hides the camera when i am working on one!


Jean-Pierre
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Old 30th January 2004, 12:12 PM   #9
Ropie is offline Ropie  United Kingdom
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Though I built my first/prototype IGC straight into a rather small, scruffy box, it was a real pain if any components needed changing (which they frequently did) hence the 'rat's nest'...

It sounded pretty good though.
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Old 30th January 2004, 12:43 PM   #10
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I think Ropie wins the medal on this contest
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