Fairfield County Signature (Two-Rock JM Sig) Build Thread

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jazzbass
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Re: Fairfield County Signature (Two-Rock JM Sig) Build Thread

Post by jazzbass »

Dear Ryan,

done, I did it by studying some Hiwatt and Rob Robinette amp schematics and adapting his suggestion a bit. On the third attempt I found the right component values.

Now I'm looking for news on # 004 by Ceriatone and Rafael on TAG.
I add a couple of photos of the JM / Fairfield, it was easy to build it with your excellent boards.

A hug.
Franco
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franco mezzalira
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rccolgan
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Re: Fairfield County Signature (Two-Rock JM Sig) Build Thread

Post by rccolgan »

Wow!! Very clean!! I love the way those F&T filter caps look.

For the Ceriatone SSS Layout :-) https://ampgarage.com/forum/viewtopic.p ... ut#p397873

Rafael's SSS #004 in the 19" chassis (started off as a Amplified Nation JM Chassis) https://www.instagram.com/p/CYT2muys_wa ... _copy_link
Ryan
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jazzbass
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Location: Resana, TV, Italy
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Re: Fairfield County Signature (Two-Rock JM Sig) Build Thread

Post by jazzbass »

Ciao Ryan,

GRAZIE

Un abbraccio.

Franco
franco mezzalira
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rccolgan
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Re: Fairfield County Signature (Two-Rock JM Sig) Build Thread

Post by rccolgan »

For those building the TRJM using a Ceriatone JM100 Chassis, Ron posted a great Google Photo album to show off his build at each step.
https://photos.app.goo.gl/KtVth6Rsh8Wosk9B9


I also did a narrative walkthrough of the photo album with my $.02 lol
https://youtu.be/m1kIZXuNDbo
Ryan
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rccolgan
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Re: Fairfield County Signature (Two-Rock JM Sig) Build Thread

Post by rccolgan »

Happy Thanksgiving, everyone! My buddy was sending me a video of one of his "rogue JMs" and I couldn't help but notice how the reverb sounded a bit different than my JM so I revisited my stash of real JM Sig pics and I'm slightly embarrassed to admit I might have been wrong about the mixing resistor in the 1 of 25 Mayer Signatures. I have a new computer monitor now and it's clear that the resistor is 125K and not 226k like some rogue Mayer's that had top-side components. My guess is those amps had a 250k reverb pot, so the 226k mixing resistor would offset the additional levels. The reverb is glorious now and I did notice a different feel under my fingers. I know @norburybrook mentioned he liked the 226k resistor choice in his because the mixture/feel was better so YMMV!

A couple of pics including the underside of a real JM sig of the mixing resistor
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Ryan
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