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Old 11th February 2013, 03:58 PM   #4771
popilin is offline popilin  Argentina
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Quote:
Originally Posted by Vincent77 View Post
Tony, excuse me for being blunt, but all of your creations (amps, preamps...) look the same. Not bad, but quite amateurish in my opinion. It's maybe time to improve on your style!


Hey, it seems to me pretty good, and I'm pretty picky.

Not to mention that Tony almost always winding their own transformers.
Can you?

He's a true DIYer.
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Old 11th February 2013, 04:13 PM   #4772
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Well....isn't that rude from Vincent to say that....?....no matter how Tony "style" is?
...or maybe they are good friends....
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Old 11th February 2013, 04:55 PM   #4773
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Originally Posted by scott17 View Post
No, you're wrong when you say you are being blunt. It's more like unmitigated audacious rudeness. But hey, that's just my opinion. Who am I to judge?
Oh, come on. I speak my mind.
I don't think that's rudeness, it's more of a constructive criticism. I encouraged Tony to improve the looks of his creations. There is plenty of inspiration on this thread!
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Old 11th February 2013, 05:20 PM   #4774
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Maybe by amateurish you mean *industrial looking*, that just happens to be my favoutite look.
Spartan and not a hint of tung-oiled rosewood in sight. Rosewood is for furniture!!.
Even refined aluminium hewn from a mill/lathe is downright annoying.
Most of the amps from the 50s like Lowther, Quad and especially Klangfilm had that industrial look.
A thing of beauty is a joy forever:
Click the image to open in full size.
I think this the look Tony will arrive at very soon.
If he can make a replica of these I will definitely place an order!
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Old 11th February 2013, 05:33 PM   #4775
dady is offline dady  Argentina
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Quote:
Originally Posted by Vincent77 View Post
Tony, excuse me for being blunt, but all of your creations (amps, preamps...) look the same. Not bad, but quite amateurish in my opinion. It's maybe time to improve on your style!
Monsieur Vincent, This is our gallery, our show, our mirror. In matter of tastes nobody like each other or visceversa. Some of us bought a porsche 959 and paint it with mustard color. Some of us are affected by deuteranopsia or protanopsia and can't enjoy the tonalities between red or green but at least we enjoy the monsters in our livings rooms with music in mind. In this case the man in question wind his own transformers and look their finish, I can say with accurately that is my favorite style.
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Old 11th February 2013, 05:34 PM   #4776
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Quote:
Originally Posted by 6L6 View Post
Vincent77, may we see photos of your DIY creations?
Sure. Here is the GM-70 SE amp that I've just (almost) finished.

My own schematic, but it's nothing really special.

It outputs a measured 29W RMS before distortion shows. The first stage is a CCS loaded, LED biased D3a (the photos were taken with an E186F in that position). The D3a has enough swing to drive the GM70 into clipping.

The GM-70 are fixed bias. They are constantly monitored by an Arduino microcontroller that I've programmed, which switches off the amp in case of problems. It also does soft start and temporisation, plus LED control to indicate status, problems or overload/clipping.

OPTs are custom gapped (90mA) Lundahl LL1688.

The supplies are in a separated chassis. There are no filtering chokes in my supplies - it's done with Mosfets and SiC Schottky rectifiers, including the 1050v GM70 supply. The kilovolt supply is not stabilized, only filtered;
the 350v supply is stabilized, not regulated (I do not like the sound of regulated supplies).

Together with Rod Coleman's filament supplies, this makes the amplifier absolutely silent, ear to the (95dB) speaker.

It sounds great.
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Old 11th February 2013, 05:36 PM   #4777
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Forgot to say this is my first big amp project, I only did headphone and guitar before. I think and hope the next one WILL look better!
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Old 11th February 2013, 05:41 PM   #4778
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Originally Posted by dady View Post
Monsieur Vincent, This is our gallery, our show, our mirror. In matter of tastes nobody like each other or visceversa. (...)
Gospodin Bikic, this is my gallery too, and I like my freedom of speech!

Of course our tastes are different. When I like somebody's work, I do not hesitate to congratulate them. And if I think there's place for improvement, I say that, too.
No hard feelings.
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Old 11th February 2013, 05:44 PM   #4779
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Quote:
Originally Posted by Vincent77 View Post
Tony, excuse me for being blunt, but all of your creations (amps, preamps...) look the same. Not bad, but quite amateurish in my opinion. It's maybe time to improve on your style!
Are all the French as charming as you?
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Old 11th February 2013, 05:51 PM   #4780
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Quote:
Originally Posted by Vincent77 View Post
Gospodin Bikic, this is my gallery too, and I like my freedom of speech!

Of course our tastes are different. When I like somebody's work, I do not hesitate to congratulate them. And if I think there's place for improvement, I say that, too.
No hard feelings.
No hard feelings. Tobarich.
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