Only had 395V B+.
JTM45 RI conversion
Moderators: pompeiisneaks, Colossal
JTM45 RI conversion
Some pics of a friend's PCB Marshall that I converted a while ago to a turretboard amp. Tubedepot OT, Larry grounding scheme. Teflon wire. We tried paper in oil caps first, combined with 6L6 powertubes. We quickly decided to use Mallory 150 caps and Valve Art KT66 tubes. It sounded absolutely freaking great. Outstanding transition from clean to sweet saturation. Then my buddy complained it was too loud...
Only had 395V B+.
Only had 395V B+.
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Re: JTM45 RI conversion
Nice job Jelle.
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vibratoking
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- Location: Colorado Springs, CO
Re: JTM45 RI conversion
That's beautiful. I want that.
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Reeltarded
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Re: JTM45 RI conversion
Fun!
Signatures have a 255 character limit that I could abuse, but I am not Cecil B. DeMille.
Re: JTM45 RI conversion
Thanks!!! I miss that amp. It lives in Europe, far away.... at some point I want to have one too. It rawks, in a very natural way.
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Reeltarded
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- Joined: Sat Feb 14, 2009 4:38 am
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Re: JTM45 RI conversion
I want another combo chassis. These are fun to build on. That looks great. Mine, ehhhh. Sounds good!
Signatures have a 255 character limit that I could abuse, but I am not Cecil B. DeMille.
Re: JTM45 RI conversion
Yes, more space, more gainstages, switches for all plexi configurations, SIR39..more more more..... Wait.... What just happened?!
curious
beautiful work classic only better!!! how would you describe the change from oil caps and 6l6s to mallorys and kt66s ,also did you try the 66s with the oils .thanxx
Live , Love , Learn
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Reeltarded
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Re: JTM45 RI conversion
You just lost your mind AND the respect of Dumblers around the World!!
Marshalls sound good without all that balanced PI thing stuff!!
Marshalls sound good without all that balanced PI thing stuff!!
Signatures have a 255 character limit that I could abuse, but I am not Cecil B. DeMille.
Re: JTM45 RI conversion
Haha, yes, Rawk! 
Reeltarded wrote:You just lost your mind AND the respect of Dumblers around the World!!
Marshalls sound good without all that balanced PI thing stuff!!
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vibratoking
- Posts: 2640
- Joined: Tue Nov 10, 2009 9:55 pm
- Location: Colorado Springs, CO
Re: JTM45 RI conversion
Just curious...do you know that your Marshall won't sound better after balancing the PI? I've never done it, so I don't know.Marshalls sound good without all that balanced PI thing stuff!!
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Reeltarded
- Posts: 10189
- Joined: Sat Feb 14, 2009 4:38 am
- Location: GA USA
Re: JTM45 RI conversion
Yes I do know. No it doesn't. Seems odd but they like being messy!
Signatures have a 255 character limit that I could abuse, but I am not Cecil B. DeMille.
Re: JTM45 RI conversion
+1 for low B+!!! I have the same on my build with a GZ34.
To hell with headroom!!!
To hell with headroom!!!
Re: curious
Thanks...well with the PIO caps and 6L6 it was more clean and with clear top end that one would expect from a tweed bassman clone. The changes brought it to marshall territory. Changing the primary Z to 3.4K REALLY did the trick for more aggressive tones with more distortion.lumox0013 wrote:beautiful work classic only better!!! how would you describe the change from oil caps and 6l6s to mallorys and kt66s ,also did you try the 66s with the oils .thanxx
Re: JTM45 RI conversion
Blackburn wrote:
To hell with headroom!!!
Can I use this as a signature?
Last edited by oh7hhi on Thu Apr 25, 2013 7:49 am, edited 1 time in total.
To hell with headroom!!! - Blackburn