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

[deadastronaut]

@maik i just realised what your avatar is... invaders from mars!!!!.. brilliant film, i love an old sci-fi ufo flick!....

a classic quote from that film ' a spaceship?...from where?'........'from outer space!'...  ha ha...brilliant!.

you gotta love 0.31-0.33  

http://www.youtube.com/watch?v=Ury5b-qtI1Y&feature=fvsr


rinaldi, always sticking his neck out...


sorry guys back on topic..

[texstrat]

Rob:

Read through the posts and is this pedal more metal than blues? Some of your earlier sound clips, page 1-2, are dead links and what I have listened to later sound more in the metal genre, and it does sound good.

I am interested in building the pedal, but I would like to hear blues tone oozing from your pedal 

[J0K3RX]

Damn... everytime I blink my eyes you guys have a new mod..! Any audio clips of ver.4 yet? I have built a couple of these now and I still like ver.1 the best... I don't mind the extra switches because I usually just jumper two of them the way I like and use one switch anyway so no biggie... Version 4 looks interesting Rob, care to do a clip? I really dig yer playing and it gives me a real good idea of what type of tone and sound I will be able to dail up...

[deadastronaut]

@jok3rx, haven't tried it, i will breadboard it soon though...been busy bee lately....gotta sort my car out today!..


@textstrat, here is a demo of v3...check it out from 4:18..with volume backed off it cleans up nice for bluesy/funky stuff..

but you can get that by just turning gain down ok...

[Maik]

Hey Rob, 0:31 is great. Thats why everybody wants kids...

[deadastronaut]

@#$%ing right.. yeah!!!!!...

[Maik]

Hey Rob, can I do the switching with an on-on-on switch like this?
http://img809.imageshack.us/img809/8103/spitfireschalterononon.png

[deadastronaut]

not sure!...rotary?..

thats unverified too, you've been warned ok..

[Ronan]

http://dl.dropbox.com/u/61170900/3way%20switching%20with%207211%20DPDT.GIF

Newark/element14 sell these for around $5. One side switches then the other side switches, the two poles don't switch at the same time.
Just another option...

[deadastronaut]

hmmmm...isnt it an on/on/on from that switch out?...looking at it again ....hmmmmmm.... ..(terms & conditions apply as i'm on the vino though!)....

.....hic.........           

[WGTP]

Hmmm.  Just looking at the schematic on page 1 and C7 - 2.2nf seems too small to do much but add hiss.  I wonder if it is supposed to be 2.2uf, or .22uf or 22uf, all of which would boost things with various levels of bass??? 

[deadastronaut]

on the v3 layout c7 is 22nf..

[Maik]

Figured it out. I take an on-off-on SPDT and put the caps on the switch, not at the pcb.
http://img268.imageshack.us/img268/2060/capswitching.jpg
Middle will be 3,3 and left 1,5 and right 6,8. This will give 4,8/3,3/10,1

[deadastronaut]

cool...sorted, are you building the v4 then?..

[deadastronaut]

@maik, wont that be halving the values...series?...or am i looking at that wrong?..

and a dpdt..

[Maik]

Hey Rob, I think its parallel (hope so ). And a DPDT off course

[WGTP]

If C7 isn't at least 220n, I'm not sure you can here it's contribution.   

[deadastronaut]

hmmmmm.....i'm hacking a spit 3 at the mo, (the one i built that didn't have any bass for some strange reason..)

i'll swap that 22n out for a 220n and see how it differs...cheers wgtp.

[Maik]

Hey Rob, I think its parallel (hope so ). And a DPDT off course

Edit: serial off course...

[deadastronaut]

ahh a 0:31 moment...

http://www.youtube.com/watch?v=Ury5b-qtI1Y&feature=fvsr



; while hacking the spit 3, ive decided to go with 3.3n for the metal modern, its just that bit tighter...and 6.8n for classic..

(the bass mysteriously apeared after poking around.)..