DaGeezer and Tubenit JAM

[tubenit]

I asked DaGeezer if he'd be interested in both of us demo-ing the amp tone of the Tweed Overdrive Specials we built.

So we did this tune.

http://www.soundclick.com/player/single_player.cfm?songid=9440223&q=hi&newref=1

IF a pop up window comes up and asks if you want it closed ............. just click "no"


I absolutely love Geezer's fluid playing. Super classy tone and guitar licks. I think his amp is probably more touch sensitive than mine in listening to his playing & his playing is way better than mine also. IF you build this amp, maybe use his schematic.
 

Anyhow, we had some fun with it. And it was kind of a grin to figure out how to do this all by email and attachements.
 

Thanks to DaGeezer!

With respect, Tubenit

[Geezer]

Indeed, that was fun to do!

Thanks for inviting me to the party! 

Geezer

[EL34]

Nice job guys
It even sounds good on my Notebook computer.

Maybe we have to come up with a pre-drilled turret board like I do on my Hoffman boards?

[tubenit]

Maybe we have to come up with a pre-drilled turret board like I do on my Hoffman boards?

Hey, that would be great from my perspective! As far as I am concerned, you're free to do anything with this design that you want. If it can create more business for you, then I am ALL for it!

I think one of the Bassman/Super Reverb trannie sets would work perfect for the amp. I did post my voltages for the Tweed Overdrive Special in the SCH files. I'll try to measure & post the voltages for the Carolina Overdrive Special in the SCH files also.

I don't know if it's DaGeezer's superior playing .......OR his amp is actually better sounding and more touch sensitive, but comparing both tones ......... I prefer his over mine. Just an FYI. Although both the Tweed Overdrive and Carolina Overdrive are easily both the best sounding amps I've built.

With respect, Tubenit

[tubenit]

I looked on the Tweaks forum and there are over 1000 hits on the Tweed Overdrive thread. Obviously there is some interest in this amp. A number of guys are planning or showing interest into building one of these.

I will try to take the info I have of DaGeezer's amp and draw up a Hoffman style layout using SCH. Maybe DaGeezer can critique and edit it for correct values and then it can be converted into the drawing program you usually use?

With respect, Tubenit

[EL34]

I'll try and get a blank turret hole drawing posted.

You can just fill in the dots where the lugs should go for your layout.

[tubenit]

Doug,

IF you have time that'd be great.  I got a couple of spare hrs this aft, so I thought I'd get started on the SCH version.

I just posted what MIGHT be the B+ rail DaGeezer's using on the Tweaks thread a few minutes ago if that would be helpful.

Jeff

[EL34]

Here's a .gif drawing that can be used to fill in the dots where a turret lug would go.
It's not exact to scale, but it's close enough

[tubenit]

Doug,

Here is an initial DRAFT version of the DaGeezer Tweed Overdrive Special in a Hoffman style layout board.  I ran out of room on the SCH space to include the nodes A & B on the board. Sorry.

I'll PM Geezer and request that he look it over and verify component values etc .................

I know he has a 50k "trim" pot on the front face and a 250k pot between the V1-7 & V2-2 paralleled grids.

Feel free to correct or edit anything you like.

REMEMBER ........ this is my first attempt to ever draw one like this, so the whole thing was "upside down" in how I usually view it.
 

EDIT:  V2-6 plate resistor should be 120k not 180k

Jeff

[EL34]

The images Look nice, but I can't use those drawings to make a CAD file.

The drawing of mine will get input into my CAD program so it knows where to drill the holes.

The holes used on my drawing depend on component spacings
The only way I know of to do this is to to print out my drawing at 100% and then lay the parts on the drawing to see which dots get used.

Or if your drawing is drawn to 100% scale, my drawing can be laid over the top of yours and then the closest hole that lines up can be filled in.

Also, many times holes are skipped so that all the parts line up in front of their respective tube socket holes

[tubenit]

Doug,

The only drawing program I have is SCH. That's all I've ever used.  I've heard about other types of programs but have no experience with them and don't have them. My understanding is they're kind of expensive.

Sorry. I was hoping that it would work out. Maybe someone else could pick up the ball and redo it into whatever program you need?  At least what I drew would be a starting place to show how to wire it up since the 5879 isn't a tube "normally" used?

Oh well.  Jeff

[EL34]

No, you don't need any special program, the template image of mine is just a .gif file
Every windows machine comes with paint, which can open .gif files.

You open the file in whatever program you use for .gif files
You print the image at 100% so the scale does not change
Then you do your parts layouts on top of the image to make sure the parts all fit
You fill in the small circles on that paper where each turret lug should go
Then you open the file in paint or whatever program you use and fill in the circles where a turret lug should go.
You save the .gif file and upload back here
I can then take your .gif file image with the dots and import that into my CAD program

Seems like a lot of work, but that's what it takes to create a new turret board layout.

If I get time, I may have a go at it.

[tubenit]

Then you do your parts layouts on top of the image to make sure the parts all fit

Not sure what this means??   Please be patient with me as I have had NO training on computers. What little I know, I've usually figured out or read up on.

Are you talking about hand drawing parts on a printed piece of paper?
Or are you talking about using sissors to cut and paste parts from the SCH on to a piece of  paper?
........................ & then scanning the paper into a GIF file to upload?

My paintbrush program doesn't draw parts (I don't think) if that's what you're meaning?

How do you get "parts" on to the printed GIF paper file? Where do the parts come from?  I am honestly trying to follow you but it's not clear what to do?

Jeff

EDIT:  I am trying to see if one of the guys on the Tweaks thread might know what is needed and is willing to help. I posted over on the original thread there.

[John]

I think I know what he means.

Open up your Paint program that comes with Windows.
From that, open his .gif in the Paint program.
Click print, but be sure to choose the 100% option. It may end up printing on multiple pages.
Then once you have that paper printed out, that will be the actual size of his circuit board. Then you can see if your components will fit the layout as you want it. If so, draw circles by hand on the paper where the turrets are supposed to go. Then go back to the Paint program, and put little circles on the board  where you want the turrets to go, matched up to where you drew the circles by hand on the paper you printed out. That way everything should be right.

If this isn't what he meant, I apologize :) but I think it is. The key is to get his .gif printed out to 100% scale, so that it's exactly the same size as the board that he makes physically. That way you KNOW your caps, tube sockets, etc. will fit right.

[tubenit]

Doug,

I printed off your GIF page and the SCH layout I did.  They almost match which still may mean what I did is worthless.

I printed them off and held them up against a window to light them up well. They really are pretty close but I realize that it's probably not precise enough.

Hopefully someone who can understand this stuff can help out?  

I am wondering if the grids on the SCH file could be set to match what you did on the GIF?   IF so ................... that might be an easy solution?

Jeff

[tubenit]

OK,  I am starting to understand what you're wanting after reading John's post.

You just want a layout board with indications as to where the turrets are ..........CORRECT?

I thought you were trying to draw up a Hoffman style layout like you have in the Hoffman Library of Information?  See attachment

We were on AM/FM frequencies. I was totally missing what you were headed towards.  

I was trying to figure out how I was going to draw tubes, resistors etc...... but you're just focused on punching holes for a turret board, I think?  That's why I could not figure out about putting parts down. I couldn't figure out how to draw them.

You don't need parts like tubes, resistors, etc.............. just "dots" for the turrets, CORRECT?

Jeff

[EL34]

John has it right.
All I need to make turret boards via the CNC machine is to know where each hole gets drilled.

Here's a photo showing how I work up designs from scratch
First I lay out all the parts and figure out how they all fit together on the paper template.
You need to do this because some parts are wider, or larger than others and their widths and spans can be different lengths.
A 16uf/475v filter cap would need lugs way out at the edge of the board compared to a 1/2 watt resistor

Then after the parts have been laid out I have a paper template with dots on it.
I take that to my cad program and punch in all the dots

You guys would have to mail me the paper template or you can just put colored dots over the top of my .gif drawing and then I can use your edited .gif drawing

We can do this for any designs you guys come up with here.

Here's a picture showing some parts laid out on my drawing
Then I made red dots where I want lugs to go


Maybe I will split this off from your sound clip post and we can discuss it in a new Post?

[EL34]

I started a new topic here for creating turret board layouts
http://www.el34world.com/Forum/index.php?topic=9741.msg88497#msg88497

[tubenit]

OK, I can do that.  Thanks for the visual. I probably can't get to it til the wkend but I'll have time to do it then maybe sooner.  Thank you!

Jeff