Yo!
Finally been able to complete this project, that was suppose to be my entry for the MadBean spring contest. After a ebay dispute for caps, i finally got those damn filtering caps! :lol:
This is litterally a JCM800 pre-amp in a box, all of the badassery to be honest, i think i've never been so happy and impressed by the outcome of a pedal project so far. 2 hours ago i A/B'd it versus a Ceriatione JCM800 clone, Pedal going in a 6L6 100watt power amp.
Other than the difference in tone of the power section, the pedal as the same exact tone print than the amp. Did the test at my good friend «Audeath» rehearsal/studio room, owner of the Ceri. We where both equally undershock by the results.
So it's built upon Juansolo/Marauder STM800 schematic and fettled Nixie tube PSU setup wich provide a strong 190V to the tube plates. Would also like to thank John and Cleggy for the help about the problems i thought i had with the PSU, but that i had'nt... ...'nyway! lml
LOTS of pics, hope some of you enjoy 3D PTP construction... :wink:
The idea
(https://scontent-a-ord.xx.fbcdn.net/hphotos-xfa1/t1.0-9/1920339_616321565109804_1454037706_n.jpg)
Drilled and Painted enclosure
(https://scontent-a-ord.xx.fbcdn.net/hphotos-xfa1/t1.0-9/10009281_616537831754844_1656845252_n.jpg)
Installed most of the hardware and ground bus
(https://scontent-b-ord.xx.fbcdn.net/hphotos-xpa1/t1.0-9/1797414_623834401025187_1008178221_n.jpg)
Input Stage complete.
(https://scontent-b-ord.xx.fbcdn.net/hphotos-xfp1/t1.0-9/10152452_624356847639609_963084904_n.jpg)
Power filtering and Input jack relocated, miscalculated the space taken by the PSU... :roll:
(https://scontent-b-ord.xx.fbcdn.net/hphotos-xap1/t1.0-9/10374919_656882951053665_4514310193815110834_n.jpg)
Blurry..
(https://scontent-b-ord.xx.fbcdn.net/hphotos-xpf1/t1.0-9/10345932_656882977720329_2374383143819020485_n.jpg)
Tone Stack and Output complete
(https://scontent-b-ord.xx.fbcdn.net/hphotos-xap1/t1.0-9/10415688_656900234385270_1128049783486695331_n.jpg)
PSU dropped in, all power connection made, getting the voltages needed everywhere. FX In and Input Jack left to be wired.
(https://scontent-b-ord.xx.fbcdn.net/hphotos-xpf1/v/t1.0-9/10433270_657380184337275_2938570703232221877_n.jpg?oh=56d8d08ff7dcf5e7eb29e51c7594319d&oe=53E48194)
FX In and Input Jack wired, using the teflon shielded wire, best stuff ever! 8)
(https://scontent-a-ord.xx.fbcdn.net/hphotos-xpa1/t1.0-9/1798622_657389197669707_7982931322074582411_n.jpg)
The Final!
(https://scontent-b-ord.xx.fbcdn.net/hphotos-xpf1/t1.0-9/10366234_657447540997206_1098907965159434884_n.jpg)
(https://fbcdn-sphotos-d-a.akamaihd.net/hphotos-ak-xfp1/t1.0-9/1798622_657447537663873_6607794562001194723_n.jpg)
(https://scontent-a-ord.xx.fbcdn.net/hphotos-xaf1/t1.0-9/10177500_657447530997207_360345330986237237_n.jpg)
(https://scontent-a-ord.xx.fbcdn.net/hphotos-xpa1/t1.0-9/10314030_657447527663874_5750172617571189592_n.jpg)
I'm probably the only other person other than John/Cleggy that have built this and few that have heard it, but it's an awesome piece of pedal to rock!
Cheers!
Rej
-Shameless Promotion-
In a partnership with Juansolo/Marauder, GCFX will produce a serie of Tube based project running at high voltages, there's lots of stuff in the pipeline at the moment but this will probably be the first layout to be released with the PSU pcb, for modular use of these.
CLIP
Based on JuansoloEffects STM800
Uses a 9V power supply and convert to 190V to the tube plates.
Input tube is a RCA 12AX7 GreyPlate, output is a JJ ECC83S.
Output of pedal goes directly to FX Return of Mesa MarkIV that is in Full power, ClassA and Triode power mode. Only the EQ is still active on the amp, mids are flat, boosted a little the highs and low.
It was quite loud when recording, so it clips at some moments, sorry about that.
MJW Telecaster w/BKP Miracle Man Alnico was used to record the loop.
And looking at this.... i think i've wired my treble pot the opposite way... or it's interacting with the middle pot in a strange manner, but it still gives the goods i think.
For the Metulz!!!
Run directly into Mesa MarkIV power amp in SimulClass mode.
Black/White pedal is a Compressor
Green knob is a YATS
Blue one knob, NoiseGate
Dude, incredible. And you're going to be releasing this as a project? You are awesome.
That is some magnificent shit. Really just spectacular.
Layouts you say? I'm getting excited.
EDIT: We must have sound ;D
Very, very cool :)
But the thought of having to work on that, WITHOUT knowing who made it or wtf it is (beyond a tube based distortion) makes me feel ill.
But it is very cool!
That's so frikkin badass!
Tube voltages scare the bejezus out of me, so even more filled-diapers propz from me!
Damn, the bar has been raised again.
You guys are just simply getting crazy with these builds. Great work Rej and sorry it did not make it in the contest.
Cody
Hell yeah! 8)
The 2nd STM800 (v2) in existence!
looks badass
Thanks guys! :D
I'll try to make a decent crap clip of it this afternoon, thing is quite powerfull... it will be LOUD!
Omg, that's cool
Wow Rej, that is awesome.
Got to the picture after the ground buss and was like ... "No way is he going to PTP a Marshall preamp in a pedal? And then you did. Looks amazing, Rej.
Quote from: juansolo on June 02, 2014, 08:19:31 AM
Hell yeah! 8)
The 2nd STM800 (v2) in existence!
Third, the first one is in Phil's V-Twin enclosure.
That's amazing Rej, I think I'll stick with the tagboard layouts rather than PTP.
Thanks a bunch guys :) Can't wait to get that project more accessible to everyone, yes it enters the «costier» project to make, but the satisfaction when firing up... is among the best DIY «fix» i ever had.
Quote from: midwayfair on June 02, 2014, 12:58:10 PM
Got to the picture after the ground buss and was like ... "No way is he going to PTP a Marshall preamp in a pedal? And then you did. Looks amazing, Rej.
Thanks Jon, gotta say that this is my 4th or 5th tube built in «3D PTP», still is that these are the most stressfull to power up. Everythng needs to be spot-on otherwise well... ...you're fuck'd and troubleshooting is a serious PITA.
You rock the PTP possibly better than me, you should give a go at something in the like, it's really rewarding personnally.
Cheers
Rej
Quote from: marauder on June 02, 2014, 06:53:41 PM
Quote from: juansolo on June 02, 2014, 08:19:31 AM
Hell yeah! 8)
The 2nd STM800 (v2) in existence!
Third, the first one is in Phil's V-Twin enclosure.
That's amazing Rej, I think I'll stick with the tagboard layouts rather than PTP.
Thanks Cleggy, for the layout and answering my stupid questions :)
I wanted to build it on tagboard first, 'cause i got some really nice «RS style» strips from a UK amp builder but it was'nt fitting in my enclosure layout.
And yeah... 1590BB was a bit adventurous for this type of project, a 1590XX or 1790NS like you guys used is way more appropriate.
Finishing my 1watt power amp this afternoon, took a nap after i sent you the email concerning the OT... might jump on the BBBT after wich i beleive John told me the schem had got a revision, dunno if you've sent me the latest version yet.
Anyway, i'm getting back to you via email.
Thanks again for all your help and quantum physics madness, your rock! 8)
Oh Lordy, sound clip please.
I need to do a new schematic and tagboard layout, its got the bax on it, but not wired backwards like it currently is.
Ridiculous...In a good way ;)
Holy crap! This is what i call art, really beautiful. I love the way you do you ground bus. So ridiculously clean...
just so I can follow your discussion: PTP=point to point? meaning you do it more or less on the fly instead of using vero or tagboard?
Quote from: marauder on June 02, 2014, 08:52:13 PM
I need to do a new schematic and tagboard layout, its got the bax on it, but not wired backwards like it currently is.
Cool! Just send me it when ready and i'll put it together :D
I'm also sending you guys a sample of the shielding wire that i'm using, stuff is undestructable and so easy to work, Belden Mil-Spec is all of the win! :D
Quote from: m-Kresol on June 02, 2014, 09:29:08 PM
Holy crap! This is what i call art, really beautiful. I love the way you do you ground bus. So ridiculously clean...
just so I can follow your discussion: PTP=point to point? meaning you do it more or less on the fly instead of using vero or tagboard?
Thanks, exactly... i prefer that PTP method over the tagboard or turret anytime. Yes it asks more time and maybe more preparation, because you can't go back... so being able to read a schematic correctly is a priority... you don't want some of this voltage to short to ground, it would hurt.
Other thing that i like about this, is that it keeps things well separated in their own «section».
For exemple, the input stage, it's all concentrated around V1, all the components are as close to the tube as possible, reducing the noise.
The power filtering and distribution to the various V+ points also get a dedicated spot in the layout, so not interfering with the input or tone stack stages that is also all concentrated around the controls.
But what i by far prefer about this type of construction is the «logistic» around it... the staggering or the components, so they don't interfere between each other and there's an artsy side to it aswell, populating a pcb is kind of a 2D experience if i can say... this is all about 3D... it takes you out of the mold.
End of Rant.
Clip is uploading.
Rej
CLIP
Based on JuansoloEffects STM800
Uses a 9V power supply and convert to 190V to the tube plates.
Input tube is a RCA 12AX7 GreyPlate, output is a JJ ECC83S.
Output of pedal goes directly to FX Return of Mesa MarkIV that is in Full power, ClassA and Triode power mode. Only the Graphic EQ is still active on the amp but it's located between the whole preamp section of amp and phaser inverter, mids are flat, boosted a little the highs and low.
It was quite loud when recording, so it clips at some moments, sorry about that.
MJW Telecaster w/BKP Miracle Man Alnico was used to record the loop.
And looking at this.... i think i've wired my treble pot the opposite way... or it's interacting with the middle pot in a strange manner, but it still gives the goods i think.
(http://media.giphy.com/media/Mes24baGbS5Og/giphy.gif)
OK, so when is the layout coming ... :o
Quote from: jubal81 on June 03, 2014, 01:06:28 AM
(http://media.giphy.com/media/Mes24baGbS5Og/giphy.gif)
OK, so when is the layout coming ... :o
Hahahaha! Jason, you win the coolest reply i ever got in a thread. ;D
To be honest i dunno... cool thing is that everything have been verified. So that's a no brainer.
I had other new projects in front of these at the moment, but we might bump it up front, i would'nt complain either :D
I second the syrupy Jesus comment. I can imagine the sense of satisfaction after putting that together.
Looking forward to building this Reg. But more importantly, you've inspired me to build a PTP pedal. Absolutely beautiful!!!
Quote from: marauder on June 02, 2014, 06:53:41 PM
Quote from: juansolo on June 02, 2014, 08:19:31 AM
Hell yeah! 8)
The 2nd STM800 (v2) in existence!
Third, the first one is in Phil's V-Twin enclosure.
That's amazing Rej, I think I'll stick with the tagboard layouts rather than PTP.
Forgot that one, that one is very fully featured though, so not really quite the same... ;)
For those who fancy doing it the hard way I revised the instructions on the site. The Twin is at the bottom.
http://juansolo.demon.co.uk/stompage/btbuild.html
For the Metulz!!!
Run directly into Mesa MarkIV power amp in SimulClass mode.
Black/White pedal is a Compressor
Green knob is a YATS
Blue one knob, NoiseGate
Full on metal! What was the blue 3 knob pedal with the green led at the end of the demo, sounds a bit ring mod
Quote from: Hangingmonkey on June 22, 2014, 08:29:37 AM
Full on metal! What was the blue 3 knob pedal with the green led at the end of the demo, sounds a bit ring mod
Madbean Kraken, Mutron MicroV Envellope Filter 8)
So I was completely off. Sounds cool though, I'll built a nautilus, though I've never been happy with how it sounds with a high gain signal.
Quote from: Hangingmonkey on June 22, 2014, 12:57:56 PM
So I was completely off. Sounds cool though, I'll built a nautilus, though I've never been happy with how it sounds with a high gain signal.
Do you put the «gain maker» in front or after the envellope?
It's sometime twitchy to use those effect with high gain sound because the envellope drives the signal a lot, gotta be careful how you set the gain control on the MutronIII otherwise it becomes blurry. For me, the way to use envellope on gainy sound is as a fixed wah.
By the way, i just randomly actuated that pedal at the end of the clip, it's more set to be used on my clean channel with the Ross side of my twin comp on. For funky kwawking sounds...
Late to the party, but that's a great sounding pedal. I was about finished with building pedals... but....
Brilliant idea to use the looper in the demo too.