6G15 build

warioblast

Joined: Nov 23, 2014
Posts: 98
Dijon
France

Posted on May 07 2017 06:40 AM

It's on !

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warioblast

Joined: Nov 23, 2014
Posts: 98
Dijon
France

Posted on May 07 2017 07:33 AM

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Gilette

Joined: May 04, 2014
Posts: 734
Montserrat

Posted on May 07 2017 07:45 AM

Cool project Keep us updated!

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LeeVanCleef

Joined: Oct 05, 2011
Posts: 744
France
12 Map Pins

Posted on May 07 2017 09:13 AM

I'll be watching this with LOTS of interest. Bonne chance pour le projet !

—

Old punks never die... They just become surf rockers.

Top

warioblast

Joined: Nov 23, 2014
Posts: 98
Dijon
France

Posted on May 07 2017 11:42 AM

Thx for the interest guys.
This is my 2nd build working with tubes, so comments & help are welcomed.
I slightly arranged the original layout to make for a filter cap. I'll be using a dual can; salvaged from my 1st build, a JTM50, which now is a JMP50; as the 1st mains filtering cap.

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warioblast

Joined: Nov 23, 2014
Posts: 98
Dijon
France

Posted on May 09 2017 02:51 PM

I started working on my cab with dowel joints.

I want my controls on the front.

Tomorrow will be gluing day and hopefully chassis day.

Top

SixStringSurfer

Joined: Sep 23, 2014
Posts: 1344
Memphis, TN
United States

Posted on May 09 2017 04:29 PM

I love threads like this. Please keep us updated every step of the way. I can't wait to see your tolex choices!

—

MooreLoud.com - A tribute to Dick Dale.

Top

warioblast

Joined: Nov 23, 2014
Posts: 98
Dijon
France

Posted on May 09 2017 06:27 PM

I won't be using tolex. I will try it someday to see how it goes, but I don't like the outcomes of most 1st time users of tolex.

My dream cabinet would look something like this,Fender pink paisley combo but getting a nice paisley pattern paper or print is a PITA. And I would have to buy a spray gun too.

So there's a big chance I will paint the cab and use paisley stencils. I may try epoxy paint to make it sturdier though, but I'm still a bedroom player so the reverb won't be moving a lot.

I saw online that my local fabric shop was carrying an affordable Supro-like blue tweed.

The jury is still out.

Top

warioblast

Joined: Nov 23, 2014
Posts: 98
Dijon
France

Posted on May 10 2017 02:42 PM

The cab is glued.
I cut my aluminium sheet but it turns out you can't bend a 2mm (0.0787") thick sheet with a clamping vice. I had no problems bending a 1.5mm (.0591") sheet so I figured 2mm wouldn't be a problem, boy was I wrong.
I will try the grooves trick. Grooves

Top

Photo51

Joined: May 10, 2017
Posts: 3
San Francisco
United States

Posted on May 10 2017 02:53 PM

Hi,
New person here, sorry if the question is basic. I would like to know if you are building this from a kit, or ?
Thnx

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warioblast

Joined: Nov 23, 2014
Posts: 98
Dijon
France

Posted on May 10 2017 03:52 PM

It's a build from scratch. I made the turret board. The cab and chassis will also be home made.
I only have or have access to hand tools so I have to be smart and patient.

I had to order my parts from 3 different suppliers.

Top

Photo51

Joined: May 10, 2017
Posts: 3
San Francisco
United States

Posted on May 10 2017 04:02 PM

Thanks for answering, looks good.

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Gilette

Joined: May 04, 2014
Posts: 734
Montserrat

Posted on May 10 2017 04:32 PM

warioblast wrote:

The cab is glued.
I cut my aluminium sheet but it turns out you can't bend a 2mm (0.0787") thick sheet with a clamping vice. I had no problems bending a 1.5mm (.0591") sheet so I figured 2mm wouldn't be a problem, boy was I wrong.
I will try the grooves trick. Grooves

Have you tried to apply some heat to soften the material?

Top

warioblast

Joined: Nov 23, 2014
Posts: 98
Dijon
France

Posted on May 10 2017 05:00 PM

I thought about it. Then I asked my uncle, who is a metal worker hobbyist, and he advised me not to. His advices on cutting the aluminium sheet straight were good so I trusted him .
Also I don't intend to use front and back pannels, so I didn't want to mess with the metal surface too much.
But I guess I could give it a quick try on an offcut.

Top

Gilette

Joined: May 04, 2014
Posts: 734
Montserrat

Posted on May 11 2017 12:21 AM

I've recreated the metal rim on a Silvertone Newport H42. I found the right aluminium profile at a place where they restore vintage trucks. The guy there told me to use a torch to soften the metal and tap it gently into the desired shape. Over a few weeks time the atomic stucture will realign itself and harden the material. It's a good idea though to try it on a scrap piece first.

Last edited: May 11, 2017 00:46:47

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LeeVanCleef

Joined: Oct 05, 2011
Posts: 744
France
12 Map Pins

Posted on May 11 2017 02:34 PM

Or you can make a DIY bending brake... It could be worth the effort if you're planning to build more amps.

—

Old punks never die... They just become surf rockers.

Top

warioblast

Joined: Nov 23, 2014
Posts: 98
Dijon
France

Posted on May 11 2017 03:48 PM

I miserably failed

I traced grooves, about half the thickness of the sheet. I used a pointy thing and then used a square file to make a V shape.

I secured the sheet in the vise but it wouldn't bend. I gave it a few more scrapes. I tried to bend it again, it slowly moved and then all of a sudden the sheet snapped.

What the hell ? I dug out a small plummer torch. Started to heat the sheet, but after a few seconds it started to smell funny. And then I realized I had not take out the plastic protections of the clamps.

I decided to call it quits for today.

I have just found a site that makes custom C-shape chassis. It costs about as much as I paid for the aluminium sheet.
I won't even bother trying to find a local shop that can do it. I think I will order it. And in the meantime, work on the cab, redo a proper footswitch and rehouse my Univibe. And now I'm even worrying if I will be able to bend the 1.5mm aluminium sheet for the vibe.

Top

warioblast

Joined: Nov 23, 2014
Posts: 98
Dijon
France

Posted on May 20 2017 07:49 AM

Got my chassis this morning. Unfortunately I have a little adjustement to make because they made it 1mm longer than I specified.

Top

Badger

Joined: Nov 16, 2013
Posts: 4536
Wisconsin
United States

Posted on May 20 2017 08:38 AM

Good luck; this is an interesting (if frustrating for you) thing to follow. As Rip would probably say, "details..."
Thanks for sharing all.

—

Wes
SoCal ex-pat with a snow shovel

DISCLAIMER: The above is opinion/suggestion only & should not be used for mission planning/navigation, tweaking of instruments, beverage selection, or wardrobe choices.

Top

tubeswell

Joined: Sep 24, 2011
Posts: 1424
Wellington, NZ
Antarctica

Posted on May 20 2017 04:36 PM

Scratch builds show real ingenuity.

Give some thought to the grounding scheme while you are at this early stage. Merlin Blencowe's chapter on grounding has some good tips, especially the hum-loop blocker. See figure 15.16 in the article on this link. http://www.valvewizard.co.uk/Grounding.pdf

—

He who dies with the most tubes... wins

Surf Daddies

Top

warioblast Joined: Nov 23, 2014 Posts: 98 Dijon	Posted on May 07 2017 06:40 AM It's on ! Top
warioblast Joined: Nov 23, 2014 Posts: 98 Dijon	Posted on May 07 2017 07:33 AM Top
Gilette Joined: May 04, 2014 Posts: 734	Posted on May 07 2017 07:45 AM Cool project Keep us updated! Top
LeeVanCleef Joined: Oct 05, 2011 Posts: 744 France	Posted on May 07 2017 09:13 AM I'll be watching this with LOTS of interest. Bonne chance pour le projet ! — Old punks never die... They just become surf rockers. Top
warioblast Joined: Nov 23, 2014 Posts: 98 Dijon	Posted on May 07 2017 11:42 AM Thx for the interest guys. This is my 2nd build working with tubes, so comments & help are welcomed. I slightly arranged the original layout to make for a filter cap. I'll be using a dual can; salvaged from my 1st build, a JTM50, which now is a JMP50; as the 1st mains filtering cap. Top
warioblast Joined: Nov 23, 2014 Posts: 98 Dijon	Posted on May 09 2017 02:51 PM I started working on my cab with dowel joints. I want my controls on the front. Tomorrow will be gluing day and hopefully chassis day. Top
SixStringSurfer Joined: Sep 23, 2014 Posts: 1344 Memphis, TN	Posted on May 09 2017 04:29 PM I love threads like this. Please keep us updated every step of the way. I can't wait to see your tolex choices! — MooreLoud.com - A tribute to Dick Dale. Top
warioblast Joined: Nov 23, 2014 Posts: 98 Dijon	Posted on May 09 2017 06:27 PM I won't be using tolex. I will try it someday to see how it goes, but I don't like the outcomes of most 1st time users of tolex. My dream cabinet would look something like this,Fender pink paisley combo but getting a nice paisley pattern paper or print is a PITA. And I would have to buy a spray gun too. So there's a big chance I will paint the cab and use paisley stencils. I may try epoxy paint to make it sturdier though, but I'm still a bedroom player so the reverb won't be moving a lot. I saw online that my local fabric shop was carrying an affordable Supro-like blue tweed. The jury is still out. Top
warioblast Joined: Nov 23, 2014 Posts: 98 Dijon	Posted on May 10 2017 02:42 PM The cab is glued. I cut my aluminium sheet but it turns out you can't bend a 2mm (0.0787") thick sheet with a clamping vice. I had no problems bending a 1.5mm (.0591") sheet so I figured 2mm wouldn't be a problem, boy was I wrong. I will try the grooves trick. Grooves Top
Photo51 Joined: May 10, 2017 Posts: 3 San Francisco	Posted on May 10 2017 02:53 PM Hi, New person here, sorry if the question is basic. I would like to know if you are building this from a kit, or ? Thnx Top
warioblast Joined: Nov 23, 2014 Posts: 98 Dijon	Posted on May 10 2017 03:52 PM It's a build from scratch. I made the turret board. The cab and chassis will also be home made. I only have or have access to hand tools so I have to be smart and patient. I had to order my parts from 3 different suppliers. Top
Photo51 Joined: May 10, 2017 Posts: 3 San Francisco	Posted on May 10 2017 04:02 PM Thanks for answering, looks good. Top
Gilette Joined: May 04, 2014 Posts: 734	Posted on May 10 2017 04:32 PM warioblast wrote: The cab is glued. I cut my aluminium sheet but it turns out you can't bend a 2mm (0.0787") thick sheet with a clamping vice. I had no problems bending a 1.5mm (.0591") sheet so I figured 2mm wouldn't be a problem, boy was I wrong. I will try the grooves trick. Grooves Have you tried to apply some heat to soften the material? Top
warioblast Joined: Nov 23, 2014 Posts: 98 Dijon	Posted on May 10 2017 05:00 PM I thought about it. Then I asked my uncle, who is a metal worker hobbyist, and he advised me not to. His advices on cutting the aluminium sheet straight were good so I trusted him . Also I don't intend to use front and back pannels, so I didn't want to mess with the metal surface too much. But I guess I could give it a quick try on an offcut. Top
Gilette Joined: May 04, 2014 Posts: 734	Posted on May 11 2017 12:21 AM I've recreated the metal rim on a Silvertone Newport H42. I found the right aluminium profile at a place where they restore vintage trucks. The guy there told me to use a torch to soften the metal and tap it gently into the desired shape. Over a few weeks time the atomic stucture will realign itself and harden the material. It's a good idea though to try it on a scrap piece first. Last edited: May 11, 2017 00:46:47 Top
LeeVanCleef Joined: Oct 05, 2011 Posts: 744 France	Posted on May 11 2017 02:34 PM Or you can make a DIY bending brake... It could be worth the effort if you're planning to build more amps. — Old punks never die... They just become surf rockers. Top
warioblast Joined: Nov 23, 2014 Posts: 98 Dijon	Posted on May 11 2017 03:48 PM I miserably failed I traced grooves, about half the thickness of the sheet. I used a pointy thing and then used a square file to make a V shape. I secured the sheet in the vise but it wouldn't bend. I gave it a few more scrapes. I tried to bend it again, it slowly moved and then all of a sudden the sheet snapped. What the hell ? I dug out a small plummer torch. Started to heat the sheet, but after a few seconds it started to smell funny. And then I realized I had not take out the plastic protections of the clamps. I decided to call it quits for today. I have just found a site that makes custom C-shape chassis. It costs about as much as I paid for the aluminium sheet. I won't even bother trying to find a local shop that can do it. I think I will order it. And in the meantime, work on the cab, redo a proper footswitch and rehouse my Univibe. And now I'm even worrying if I will be able to bend the 1.5mm aluminium sheet for the vibe. Top
warioblast Joined: Nov 23, 2014 Posts: 98 Dijon	Posted on May 20 2017 07:49 AM Got my chassis this morning. Unfortunately I have a little adjustement to make because they made it 1mm longer than I specified. Top
Badger Joined: Nov 16, 2013 Posts: 4536 Wisconsin	Posted on May 20 2017 08:38 AM Good luck; this is an interesting (if frustrating for you) thing to follow. As Rip would probably say, "details..." Thanks for sharing all. — Wes SoCal ex-pat with a snow shovel DISCLAIMER: The above is opinion/suggestion only & should not be used for mission planning/navigation, tweaking of instruments, beverage selection, or wardrobe choices. Top
tubeswell Joined: Sep 24, 2011 Posts: 1424 Wellington, NZ	Posted on May 20 2017 04:36 PM Scratch builds show real ingenuity. Give some thought to the grounding scheme while you are at this early stage. Merlin Blencowe's chapter on grounding has some good tips, especially the hum-loop blocker. See figure 15.16 in the article on this link. http://www.valvewizard.co.uk/Grounding.pdf — He who dies with the most tubes... wins Surf Daddies Top

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6G15 build