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  1. V

    Where to find accurate parts lists, circuit layouts, schematics for plexi replicas (like what metroamp used to have)

    ValveStorm JTM45/100 Build Checklist
  2. V

    Vintage Inspired Jtm45/100 Block-end Build

    Should be able to hear it in the clips posted a few posts back. I put the bright cap on a pull switch so that it is optional. Pretty sure the clips above were recorded without the bright cap engaged.
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    Vintage Inspired Jtm45/100 Block-end Build

    Thanks Neil! That first amp (the one in the pics/vids) was running 495 at the plates. $$$ NOS GEC KT66 Quad not sure what the preamp tubes were (maybe Harma Retros or the could hav been NOS mullards). I don't have access to the first amp for comparision. The second amp is running 490v at the...
  4. V

    Vintage Inspired Jtm45/100 Block-end Build

    The original amp found its way to Dave at LA Sound Designs in LA. He has several clips using it on his YouTube channel.
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    Vintage Inspired Jtm45/100 Block-end Build

    AFAIK, the block-ends were used on some of the older JTM45, JTM45/100 and JTM50 models
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    Vintage Inspired Jtm45/100 Block-end Build

    Thanks Guys! Sorry to resurrect an old thread! I finally got around to build another one of these. The new one is running a bot lower (490v) on the plates than the original (495v). Carl and Neil were having a discussion earlier about tweaking the 8.2k decoupler to adjust the down stream...
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    Lacing Tutorial?

    Brian H's tutorial is on this FB group. You will probably have to join the Vintage Marshall Amp Builders group to see it. https://www.facebook.com/media/set/?set=oa.488287761508131&type=3
  8. V

    Marshall St1 Pcb Layout

    I just need a good pic of the top side of an unpopulated board (so I can see the traces thru it), or a pic of the under side of the board. Trying to see how the B+ is arranged as it goes thru the (2) 10k resistors in the center of the board. It looks like it comes from the PI to the pot side...
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    Marshall St1 Pcb Layout

    Does anyone have the layout for a Marshall ST1 PCB? I am particularly interested in the under board trace layout. Trying to figure out which end of the (2) 10k decoupling resistors (middle of the board) feeds the v1 anodes?
  10. V

    Best Transformers For A '68 12000 Series Build?

    Sorry for the late reply... here are some 12xxx instructions that I cobbled together from the NightOwl posts on Metro forum: http://www.mediafire.com/file/uj79spi7mr89b38/12xxx_NightOwl.zip FWIW...Friedman once said that the CT T-2562 had the right sag characteristics for a 12xxx
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    Vintage Inspired Jtm45/100 Block-end Build

    I like the bright cap at certain points on the volume rotation, but not others... also depends what pedals are in front. Glad I made it switchable. They are Harma retros Both transformers are the Metro versions made by Heyboer. The PT (1204-43) is running about 495v at the plates...
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    Vintage Inspired Jtm45/100 Block-end Build

    Not a full blown museum piece, but a nod toward the vintage with some modern updates... the goal being to get the tone! Thanks to Neikeel for his help getting this right! Custom Back panel Block-end chassis begged from another builder Preamp section with switchable 100pf bright cap...

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