GTFO - Full tube high-gain pedal (2x 12AX7)

[J0K3RX]

Hilli,

Nice set of tubes ya got there! 

Hope yer gonna protect them from Mr.Crazy Foot and five brothers!! 

~Jim

[Hilli]

Hi Jim,

I hope that too. Hahaha. But I have small feet. lol

What projects are you working on currently? Need an idea....

Hilli

[J0K3RX]

Hi Jim,

I hope that too. Hahaha. But I have small feet. lol

What projects are you working on currently? Need an idea....

Hilli

Well, at the moment I have 3 amps that I am messing around with.. The first one is a Jet City JCA20H that I got for $159.00 with free shipping from Musicians Friend when they were running it on "Stupid Deal of the Day" which was a killer deal for a killer little amp!! I have been looking at all of the mods for the JCA20H but they are starting to bore me to be honest.. All are Jose/Friedman/Cameron clones or some variant and they sound damn good but, it's just lost it's magic/charm for me...  I was thinking of maybe a super charged Avenger or Bogner, Engl or something crazy like Elan MKII.. Dunno yet? 

I do like the Fortin Hulk mod this guy did on his JCA22H! Pretty sure I can turn the 20H into a Hulk

Another amp is an old 80's Randall ProTube II 50 watt that I picked up for $50 and the guy said that it didn't work, and it didn't.. But, a few caps, resistors and reflowed solder joints later it's werking again.  Actaully sounds pretty damn good but, it needs some moddin! 

The last one is my old 5150 which just needs some work... and mods of course 

I don't know why more people haven't taken the basic GTFO design and done some other stuff with it? I actually destroyed my first one converting it into other preamps just messin around... I made it an Engl then a Marshall then a Bogner and then it was toast... salvaged the parts and haven't done anything with this again but I plan to again, soon! Would like to make a really hot Uberschall and I think I can, just need to get some time which is the hardest thing for me to do!

[Hilli]

Wow, you have made a very good deal!!!  The JCA22 sounds really good. I don't know the Randall ProTube II, but the 5150. It is a kliller amp.
I've given up trying to build large tube amplifiers, I have build them all. It simply is not worth it, the parts are very expensive and if you sell, you get only half the money. That's why I'm looking for small projects like the GTFO. That's perfect for me. I use a GTFO, a TC G-Major and my Music Man Luke. Sounds awesome. I do not need more. 

[Hades_Snake]

Hi Gabriel,
May i ask why you chose to keep SMPS and preamp on separate boards? To avoid parasitic frequencies or something like that? Or just easier to build?

[gtudoran]

Hades, the reason was simple had to fit inside a 1590C type box with all the hardware inside + the tubes that was one ... and the other one is that i have more flexibility in therms of fitting all. Also i already had the SMPS modules manufactured.

Regards,
DeX

PS: the osc. of the SMPS is @ about 68KHz so it's way way out of the audio spectrum

[Granny Gremlin]

Hey gtudoran, just wondering what the status on the PCBs is - are you shipping out boards yet or is it still in pre-order?  Sorry if I missed it in this thread.

[gtudoran]

Granny i'm afraid they were sold-out from the moment i brought them. I will place another order soon, this time only 10 sets were available and all of them were sold before they even arrived.
I will keep you posted.

Regards,
DeX

[Granny Gremlin]

Yeah I preordered and paid your paypal invoice so one of them should be in the mail heading my way then.  Just wondering because I couldn't find an update in the thread and there was a good few weeks between signing up for the preorder and the paypal invoice.  Thanks.

[gtudoran]

Ohhh then it should be ok, was a slight delay with the guys from DHL and last week on the 30th a couple of friends had a really bad accident in a club (quite a big fire) so i've ran up and down to help them a little. The boards are in the mail as we speak (since yesterday) and should arrive at your place asap.

Regards,
DeX

PS: Granny you are on FB too?  or ... who are you

[Granny Gremlin]

Yes, we've heard about that fire - made the news on this side of the pond. 

No, I don't do FB.  No worries - I'm not impatient, just checking.  I'm the Canadian (out of 10 orders I am assuming there aren't too many more in the group). If there's other Canuks PM me for details.

[duck_arse]

[I saw about that fire here on the Romainian news. I had no idea it was so bad, though.]

[PRR]

> a really bad accident in a club (quite a big fire)

Colectiv nightclub fire

To my (US-based) eyes, it looks a lot like the Station nightclub fire, Rhode Island, 2003. Pyrotechnics and untreated acoustic foam.

This happens every few years. Actually, the Station fire was filmed because of the E2 fire 3 days before. But the 1942 Cocoanut Grove fire, paper "palm trees", killed 492, and led to some crackdown on public decorations. Of course this was after a massive theater fire in Chicago, which set strict rules for theaters. I see the same pattern in other countries.

[gtudoran]

Back in black. This weekend i've managed to finish the GTFO V2 using the new PCBs - as i said this will be the final version and from my point of view no other modifications will be made. Soon this build will be available as a full kit.





Regards,
DeX

[J0K3RX]

Back in black. This weekend i've managed to finish the GTFO V2 using the new PCBs - as i said this will be the final version and from my point of view no other modifications will be made. Soon this build will be available as a full kit.



Regards,
DeX

Back in black? Is this a color blindness test? 

[gtudoran]

Especially for you Jim )

Back in black. This weekend i've managed to finish the GTFO V2 using the new PCBs - as i said this will be the final version and from my point of view no other modifications will be made. Soon this build will be available as a full kit.



Regards,
DeX

Back in black? Is this a color blindness test? 

[gufo05]

Hi my friends, I'm a noob in the DIY's pedals but I wanna try whit this pedal

Please, send me the schematics, layout PCB and the material list of Soldano emulator with 2x 12ax7 , I don't found this

Sorry, but I don't speak english, I speak spanish.

Spanish:

Hola amigos, soy principiante en los pedales DIY pero quiero intentar con este pedal

Por favor, alguien que me envie los esquemas, el dibujo del PCB y la lista de materiales por favor, no la encuentro por ningun lado

Saludos

my email: hector.andres.05@hotmail.com

[guajiro2000]

Hola paisano.
Tienes toda la documentación en este mismo hilo , los esquemas y las explicaciones.

Saludos.

[Cozybuilder]

Me allegro por tu paisano, hay en Ingles tambien?

[PRR]

> Tienes toda la documentación en este mismo hilo

The original links in the first post are now gone.

There may be updated files in the 23 pages of the thread, but that's a lot to go through. Especially if pedal-english is not your best language.