JTM 45/100 completed!

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Structo
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Re: JTM 45/100 completed!

Post by Structo » Tue Aug 18, 2009 10:48 am

360v on a 12ax7?
I wouldn't expect long tube life at that voltage.

Do most Marshall's run it that high?

Design parameters for a 12ax7 usually list 300v max.

But I know that Leo Fender used to exceed those all the time. :mrgreen:
But back in the day, tubes were a bit more robust.
Tom

Don't let that smoke out!

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Re: JTM 45/100 completed!

Post by Roe » Tue Aug 18, 2009 10:59 am

Structo wrote:360v on a 12ax7?
I wouldn't expect long tube life at that voltage.

Do most Marshall's run it that high?

Design parameters for a 12ax7 usually list 300v max.

But I know that Leo Fender used to exceed those all the time. :mrgreen:
But back in the day, tubes were a bit more robust.
no, that's just the 45/100 - but its the greatest amp ever
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gutpile
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Re: JTM 45/100 completed!

Post by gutpile » Wed Aug 19, 2009 12:10 am

Roe wrote: no, that's just the 45/100 - but its the greatest amp ever
:D :D :D :D :D +1
Metro Clips
Amps:Metro-(JTM45,50w,'69 spec 100w,45/100,100wMV,Bluesbreaker Combo),Orig. 65BFTR
Axes:LP Custom,Am. Strat,Am. Tele,61 SGRI

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Re: JTM 45/100 completed!

Post by Drifting » Wed Aug 19, 2009 12:52 am

Roe wrote:
no, that's just the 45/100 - but its the greatest amp ever
This should be the banner for the forum, lol!

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Re: JTM 45/100 completed!

Post by Spodeeodee » Wed Aug 19, 2009 11:40 pm

Vegard, what can I say about this build that hasn't already been said?!?

Question - on the power board, are those the F&T 30uf or 47uf caps?
Travis
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Re: JTM 45/100 completed!

Post by Vegard » Fri Aug 21, 2009 6:09 pm

Hi!

The F&T caps on the powerboard is 32uF!


Im at the nashville amp expo now, and i can hear George & CO testing their amps. Sounds great! :D
Metroamp builds : 68` 50w (x2), 69` 100w, 68` 100w 12xxx (x3), JTM45/100, JTM50(x2), 2203

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