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Amplified Parts
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|-+  British Style
| |-+  JTM 45, 50
| | |-+  Who has a JTM50?
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Author Topic: Who has a JTM50?  (Read 5091 times)
archtop
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« on: October 31, 2007, 09:34:19 PM »

I've got a friend building me a JTM50 on a Ceriatone Chassis with Marstran transformers. It isn't quite done yet.

I'm hanging to hear it. I was kind of inspired by Germino Club 40 amp.

So who else has one, how are finding it's tone?

Got any Clips?
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Roe
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« Reply #1 on: November 01, 2007, 08:48:15 AM »

I'm building a metro jtm50 now. I hope nik's faceplate will fit
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Kitarist
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« Reply #2 on: November 01, 2007, 08:54:11 AM »

I hope everything will work out for you. it can be really frustating if something doesnt fit they you have to do this and that...
Keep up the good work and happy building
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Music has to breathe and sweat. You have to play it live
ampkits
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« Reply #3 on: November 03, 2007, 01:31:11 PM »

Hi,

  Cool. Hopefully it will fit.

  As for the JTM50, this is not a really well known amp.

  Often time, they're confused as JTM45 (thanks to the JTM block logo on the front).

  Or people call it, JTM45, but with EL34 tubes. Thats been my exp. here.

  I would be very interested if Roe and archtop can post clips, and comment on the sounds.

  Thanks!

Nik
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« Reply #4 on: November 03, 2007, 04:45:47 PM »

This might be an odd question, but how would the JTM50 compare to the 1987 lead or 1986 bass? they're all 50 watters with EL34's, so I'm wondering.

I know the super leads sound a bit more aggressive compared to the JTM's for one thing.
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archtop
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« Reply #5 on: November 04, 2007, 06:57:23 AM »

I'm guessing the feel will be quite different. 1987 has a solid state rectifier versus valve rectifier... so perhaps the JTM50 won't be as loud and perhaps will sag more, and have a bit more harmonic content... maybe different attack characteristics too.... I'll let you know how I go.
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ampkits
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« Reply #6 on: November 04, 2007, 10:46:22 AM »

Hi,

  The JTM50 does have more of the JTM45 values to the components as well, ie it's not just 1987 with tube recto.

  I love how these amps are so similar in layout, thats what's so smart about them, production wise.

  Would be good to see how tweaking to 1987 specs bring you (only a few component changes).

  Thanks!

Nik
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Jonsnow
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« Reply #7 on: May 10, 2019, 12:28:00 AM »

I think the amp is the best for me.
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Ketrool
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« Reply #8 on: November 11, 2019, 03:45:52 AM »

It's a difficult matter to understand.
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