'SPITFIRE' Metal 'n' Blues Pedal...

[Ronan]

The problem with more gain is less definition, less of the guitar tone itself coming through. I think the Spitfire is a good balance. You could destroy what you got by adding more gain, or maybe not, depending on what your ears wanna hear.

[WGTP]

Yes, I'm not saying all those mod's will work, as apposed to creating an oscillating mess, those are standard methods of increasing gain.  Some designs produce 2 stages maxed out, others 3 stages with less gain in each stage, but about the same overall gain for the devices.  When designing for max gain, a point is usually reached at which additional gain will cause the device to be unusable. 

I forgot to add that resistance can be added between stages to reduce gain.  This is commonly used int tube amps.

[deadastronaut]

right, heres version #3 . i kept it simple in the end......a bit like me..

using an spdt on/on switch...to go between modern/classic...socket c10/c11 to taste.......

http://dl.dropbox.com/u/7464107/SPITFIREV3.pdf

http://dl.dropbox.com/u/7464107/SPITFIREV3PCB.pdf

pcb's available soon if anyone is interested, pm me ok....

[euronymous0001]

hey rob,

the first link is dead

[deadastronaut]

works fine for me?...

[Perkla]

Looks great..

Do u have a demo of this pedal ? on youtube maybe ?

[deadastronaut]

 ....its the same as this but with the sustain boost on permanent, and blues on permanent...

with just modern/classic as in the video.....simplified after a few weeks of using it...

from 7:33.

[Perkla]

U are a damn good guitar-player.. i must say, sound good..

The V3 sounds awesome.. and less SPDT ´s than the V2..

[deadastronaut]

cheers man!....yep kiss (keep it simple stupid)...is the way to go..

[deadastronaut]

spam alert!

spitfire pcbs ready guys. (fits 1590b)  sorry for the wait, i was waiting on an etchant delivery..



i found out the average airmail post worldwide is £1.50 +£6.00 per pcb.=  £7.50 GBP total.

paypal at deadastronaut@yahoo.co.uk if you would like one..

i'll post  orders out on saturday 14th jan...if ordered by friday 13th night ok..

any questions pm me ..

[Perkla]

spam alert!

spitfire pcbs ready guys. (fits 1590b)  sorry for the wait, i was waiting on an etchant delivery..



i found out the average airmail post worldwide is £1.50 +£6.00 per pcb.=  £7.50 GBP total.

paypal at deadastronaut@yahoo.co.uk if you would like one..

i'll post  orders out on saturday 14th jan...if ordered by friday 13th night ok..

any questions pm me ..

Looks great, do u etch yours in a etching tank ? do u use OH and photopossitive copperlaminate ?

[Govmnt_Lacky]

Looks GREAT Rob but...

I'm gonna hold off until the 1590A version shows up 

[deadastronaut]

i dont do 1590a's...i haven't got tiny feet...

@perkla:  laser toner method:

[J0K3RX]

Rob ~ Nice looking etch and drill! I like using DIY Layout Creator, quick an easy... I like to leave as much copper as possible on mine just to save ferric chloride etching solution... I know some people don't like it if their solder skills are shaky and are prone to creating solder bridges/shorts etc... But I like it.

[J0K3RX]

Rob ~ Here is one I did  from your layout but with on-board pots.. less wire I don't have the parts layout but it's pretty much the same as yours, a couple things have moved a little but nothing that somebody couldn't figure out... This was for my own personal use, not going to sell them!

http://dl.dropbox.com/u/11178619/Spitfire%20v3.1.34%20transfer%20onboard%20pots.bmp

[deadastronaut]

@jok3rx : nice work man!.

i like to have my pcbs a bit more open plan, for shaky dudes with dodgy eyes like me....



@Ian.W.B.  thanks. will post saturday with other orders ok.

edit:

@Al .S.  thanks. post saturday ok.

edit:

@R.V.  thanks. post saturday ok .

[WGTP]

Here is a shot of the frequency response of the tone control set at modern, with the 50k pot in the middle.  A 100k pot lowers the midrange notch down a little and cuts more of the treble. 

http://www.aronnelson.com/gallery/main.php/v/WGTP/Dead+Astro.jpg.html?g2_imageViewsIndex=1

[J0K3RX]

Hope you don't mind me doing this Rob... I just love this pedal!!!


layout with the onboard pot differences
See diagram below:
dl.dropbox.com/u/11178619/Spitfire%203%20%20onboard%20pots%20layout%20daigram.jpg

Standard Layout differences
See diagram below:
dl.dropbox.com/u/11178619/Spitfire%203%20Standard%20layout%20daigram.jpg

Board Transfers:
Onboard Pots - open layout without the ground plane for those with unsteady hands and poor eyesight
dl.dropbox.com/u/11178619/Spitfire%20v3%20onboard%20pots%20open.JPG

Onboard Pots - With ground plane fill to save etching solution
dl.dropbox.com/u/11178619/Spitfire%20v3%20onboard%20pots.JPG

Standard layout no ground plane for the elderly...  
dl.dropbox.com/u/11178619/Spitfire%20v3.1-1%20open.JPG

Standard layout with ground plane fill to save etching solution
dl.dropbox.com/u/11178619/Spitfire%20v3.1-1%20transfer.bmp

[J0K3RX]

Here is a shot of the frequency response of the tone control set at modern, with the 50k pot in the middle.  A 100k pot lowers the midrange notch down a little and cuts more of the treble. 

http://www.aronnelson.com/gallery/main.php/v/WGTP/Dead+Astro.jpg.html?g2_imageViewsIndex=1

I will give that a try!

[Jorge_S]

I think it will be a good idea to move the design files to the wiki, with a "mods" section. This pedal is great!