Finally starting my build

Detailed assembly steps separated into threads.

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Vegard
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Re: Finally starting my build

Post by Vegard » Wed Mar 30, 2011 5:32 pm

560V, wow! Can you get modern tubes that will handle that voltage?
Metroamp builds : 68` 50w (x2), 69` 100w, 68` 100w 12xxx (x3), JTM45/100, JTM50(x2), 2203

Ydna
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Re: Finally starting my build

Post by Ydna » Wed Mar 30, 2011 9:43 pm

Brian said he has a pair of Valve Arts that are running at that voltage for over a year now. And I'm going with Gold Lions.

I've decided I'm gonna go with M.e.r.r.e.n transformers.

Can anyone explain to me why that name is blocked out?
~Current Amps~
1. 1963 Sano Supersonic
2. 1990s Fender Dual Showman
3.JTM45/100 Build

~Future Amps~
1. 69 Superlead
2. Lots of Metropoulos amps

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Xplorer
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Re: Finally starting my build

Post by Xplorer » Wed Mar 30, 2011 9:50 pm

oh ! good to know ! cause i'm about to start such amp, and run this jtm45/100 at 560v too ! Valve art ?
i don't know how long some NOS KT66 could last, any idea ? i know that they're supposed to handle it easyly , and stay alive much longer but , what does that mean ? should i pay some new quads of GEC kt66 every 2 years, five years ?
i could buy a nos set, and compare with some valve art or you said gold lion right ? and then perhaps preserve the nos set but use it from time to time ?
are you talking about Brian Wallace using these tubes ? i'm waiting the rest of my transformers from him. it should be great in the end.

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Xplorer
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Re: Finally starting my build

Post by Xplorer » Wed Mar 30, 2011 10:02 pm

yeah, i have no science and knowledge about tubes, really, i admire you guys who understand how tubes work .
But i know that i'm looking for some gec kt66, matched for ... i don't know which tube value ( ? )
and perhaps a quad of modern kt66 that could handle 560v easyly, and last long, and especialy be very close to the gec kt66.
only valve art and gold lions ?

i read that tubes have to be "burned", "matched" with a special tubes "unit", etc ... i have no idea of what it really means. and i'm building a second plexi ... lol :palm: shame on me.
i can't recognize a GOOD tube, and a GOOD quad, and for me, biasing an amp is just playing with the bias pot to read the right ammount of miliamps, where it's supposed to run. but deeper , i don't know...

any ... :idea: ?

Ydna
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Re: Finally starting my build

Post by Ydna » Thu Mar 31, 2011 8:06 pm

Oh, I don't know anything really. For current production tubes, stick with Gold Lions, I'd say you have a better chance of them taking those voltages over Valve Arts.
~Current Amps~
1. 1963 Sano Supersonic
2. 1990s Fender Dual Showman
3.JTM45/100 Build

~Future Amps~
1. 69 Superlead
2. Lots of Metropoulos amps

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Xplorer
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Re: Finally starting my build

Post by Xplorer » Thu Mar 31, 2011 8:21 pm

ok thanks. let me know how it turns out ! and if you have a chance to compare it to gec kt66 ...

Ydna
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Re: Finally starting my build

Post by Ydna » Thu Mar 31, 2011 9:03 pm

Xplorer wrote:ok thanks. let me know how it turns out ! and if you have a chance to compare it to gec kt66 ...
I'd love to, but I don't think it'll happen.
~Current Amps~
1. 1963 Sano Supersonic
2. 1990s Fender Dual Showman
3.JTM45/100 Build

~Future Amps~
1. 69 Superlead
2. Lots of Metropoulos amps

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