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

[duck_arse]

is there a current version circuit somewhere handy?

[deadastronaut]

http://www.aronnelson.com/gallery/main.php/v/chickpea/SPITFIREV3.jpg.html?g2_imageViewsIndex=1

[duck_arse]

thanks, DA (the other). so, looking at the layout posted above, the parts numbering doesn't seem to quite match.

[deadastronaut]

no it doesn't perrow did that curly one a while back..

[Perrow]

I thought that was for the V3 but I might be wrong? I think I matched the parts numbers for the version I used as reference and I think it was a version d'Astro never did build. I etched and populated an earlier version of that board that copied the posted layout which had a flaw (so my 1590A version did too) and I never got around to etch another.

I'd look at my layout in DIYLC but I haven't installed it since upgrading my computer and I just have to get to bed now. Maybe I can look it up tomorrow evening.

[Perrow]

here ya go ...sorted...good catch man!..

http://dl.dropbox.com/u/7464107/SPITFIREV5THRASHER.pdf

http://dl.dropbox.com/u/7464107/SPITFIREV5PCB.pdf

T'was V5 I modified. Some caps aren't numbered in d'Astros layout, but you can deduct which one's which from value and parts list.

That layout is not verified but neither is it disproved.

[Luke51411]

I built V3 today. This thing rips! Thanks for all your hard work DA. I built it on the vero layout in the tag board request forum. It can be found here: http://guitar-fx-layouts.42897.x6.nabble.com/Spitfire-Metal-n-Blues-Pedal-from-DIY-stompboxes-request-td8893.html#a8991

[SmoothAction]

Yep, it rips. DA did a super job on this circuit, my buds are hounding me about the sweet toanz of this pedal. I just tell em to build one themselves out of respect for DA, I won't be selling mine or any multiples.

Waiting for robs 3 band eq version. The single tone control works nicely but I'm amped to see his reincarnation of this wicked beast. Puts my bsiab2 in the dog house for sure.

[Luke51411]

I can't wait to get a chance to play with this pedal some more. For V3 is there much difference from V1 other than removing the hi boost/cut switch and the blues/funk switch? I'll look at the schematics side by side when I get a chance. Would it be worth adding these switches to my build or was there a good reason they were removed? Ultimately I'll have to try it for myself just wondering about other opinions. Thanks.

[deadastronaut]

cool glad your enjoying it...

i removed those option just for a simpler build...i settled on the one i liked and left it at that...

rob,

[Luke51411]

So I plugged my build into the breadboard since I don't have it boxed yet and I couldn't figure out why it was so quiet as it was quite loud when I tested it after first building. I cranked the gain and volume still not very loud though it sounded good. Upon checking connections i discovered that I had plugged the output of the circuit in to the adjacent strip to where I plugged in the output jack. I was surprised at how much signal came through without actually being connected

[J0K3RX]

Hey Rob you still have this on the bread board? I am curious to how this will sound..?

[deadastronaut]

Hi jim , yep i still have the stackless one on breadboard,  if i get time tomorrow ill try it man...

[J0K3RX]

Here is "straight up version 3" done with Diptrace..  Not the most beautiful but gets the job done! Needs some silkscreen touch up..

[deadastronaut]

Sweeto...im still getting my head around eagle...i,m at the point of sorting out the gerbers etc....bit by bit...in between other stuff....

[SmoothAction]

Nice jok3rx! I am a huge fan of all robs work here. A real go getter he is. There are so many circuits that get excessive love... This spitfire is criminally overlooked in the metal world for sure. I fekin' love mine. It needs a fabbed PCB, with DA's blessing of course. Sweat and blood is obvious here. I'm just a lonely diy'er for sport, but this one has me hooked.

BUMPED BECAUSE IT NEEDS TO BE BUILT.

[347sixtyseven]

Hi guys,

I just completed a build using the layout the Ozsi posted.

With basic ancilliary wiring it worked beautifully but i have just boxed it up and am having problems.

When a battery is connected the pedal produces a squealing noise even when the effect is bypassed. (standard 3pdt,led,9vdc socket wiring)

I have triple checked everything and cant see anything that would be causing a problem. Please note that the 3 position switch and the gain pot cause variation of the sound. Also if the board is lifted from the enclosure and moved around the noise varies (sounds like a theremin almost).

Any suggestions or direction to obvious problems would be greatly appreciated

Cheers

Gary

[Luke51411]

I had the same thing. I fixed it by using shielding wire on the input and output. Make sure to connect the shielding to ground .

[347sixtyseven]

Luke, thank you for your reply, did you have the problem before you put the circuit into your enclosure or after?

Only asking as mine performed perfectly just as a bunch of components and wires on the floor, only started playing up when put in the enclosure?

I will try shielded wire though.

[Luke51411]

It worked good the first time before I boxed it then when I pulled it out to troubleshoott it squealed sometimes depending on wire positioning. I think I shielded the wires to the classic/modern switch too not sure if that was necessary but it works now.