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DIYstompboxes.com  |  DIY Stompboxes  |  Building your own stompbox  |  'SPITFIRE' Metal 'n' Blues Pedal... 0 Members and 1 Guest are viewing this topic. « previous next »
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Author Topic: 'SPITFIRE' Metal 'n' Blues Pedal...  (Read 72180 times)
Perkla
Posts: 214


Re: 'SPITFIRE' Metal 'n' Blues Pedal...
« Reply #100 on: December 30, 2011, 01:23:43 PM »

yeah, it''l be fine...in uk we have 47k's..in usa etc  they have 50k's...

same as 470k/500k...etc...  just the way it is..

again you might wanna hold fire and wait for the version 3...less switches, and better imo...

i'll post it up later or tomorrow ok...i'm just trying to find a @#$%ing on on on switch arghhhhh...... icon_rolleyes

OK cool.. well, yes if u can provide a sound sample of the version number 3 maybe that is what i want to build.. i am gona order some stuff so.. just let me know what components it have and i order than at the same time.. Cheesy
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deadastronaut
Posts: 9753


Rob H. LONDON


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Re: 'SPITFIRE' Metal 'n' Blues Pedal...
« Reply #101 on: December 30, 2011, 01:26:56 PM »

get a on/on/on switch for sure....
i can't find one in my bitsbox..arghhhhhhhhhhhh....off to the shops tomorrow...if they are open.. Roll Eyes

all other components will be standard stuff...just one more cap ...
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Perkla
Posts: 214


Re: 'SPITFIRE' Metal 'n' Blues Pedal...
« Reply #102 on: December 30, 2011, 01:38:38 PM »

get a on/on/on switch for sure....
i can't find one in my bitsbox..arghhhhhhhhhhhh....off to the shops tomorrow...if they are open.. Roll Eyes

all other components will be standard stuff...just one more cap ...


Ok iŽll get an on/on/on switch.. i have most of the standard stuff so i hope i have everrything else..

But would be cool to see a wiring diagram on the version 3.. just to have a look what it looks like.. Cheesy, and hey.. btw, in the version two, isnt it possible to have an ON/ON switch for the VOL 1 bright and VOL 2 darker ? i mean so it could easy be switched between the both modes ? just a thought though..
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deadastronaut
Posts: 9753


Rob H. LONDON


WWW
Re: 'SPITFIRE' Metal 'n' Blues Pedal...
« Reply #103 on: December 30, 2011, 01:42:58 PM »

you could do that yep...but when you build the pcb try both outs first to see which you prefer..

i'm all for the simple life.. Smiley
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Perkla
Posts: 214


Re: 'SPITFIRE' Metal 'n' Blues Pedal...
« Reply #104 on: December 30, 2011, 01:48:25 PM »

Yes.. ok.. thats what i had in mind, and i kind of like switches that change the sound, but i am all out on developer so i cant etch eny PCBŽs now.. need to order that to Cheesy

Well u mean that i could build both the version 2 and 3 ? or what did u have in mind ?  icon_biggrin
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deadastronaut
Posts: 9753


Rob H. LONDON


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Re: 'SPITFIRE' Metal 'n' Blues Pedal...
« Reply #105 on: December 30, 2011, 02:01:30 PM »

i would build 3..., you'll still have both outs if you like too...optional.

i'll knock it up asap, my family have just turned up from miles away, so i'll have to squeeze it in when i can... Roll Eyes
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Perkla
Posts: 214


Re: 'SPITFIRE' Metal 'n' Blues Pedal...
« Reply #106 on: December 30, 2011, 02:15:01 PM »

i would build 3..., you'll still have both outs if you like too...optional.

i'll knock it up asap, my family have just turned up from miles away, so i'll have to squeeze it in when i can... Roll Eyes

Thats awesome.. iŽll wait and see what happens..

What amp did u use in the demo of this pedal ?
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deadastronaut
Posts: 9753


Rob H. LONDON


WWW
Re: 'SPITFIRE' Metal 'n' Blues Pedal...
« Reply #107 on: December 30, 2011, 02:16:48 PM »

no amp, straight into a mixer... icon_cool
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Perkla
Posts: 214


Re: 'SPITFIRE' Metal 'n' Blues Pedal...
« Reply #108 on: December 30, 2011, 02:35:24 PM »

no amp, straight into a mixer... icon_cool

Thats cool.. cus a amp sounds different to.. if i test a pedal in a music store that i like and i was playing it on a JCM 800 and comes home and hook it up to my Marshall MG15 ministack it will not sound the same..
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Perkla
Posts: 214


Re: 'SPITFIRE' Metal 'n' Blues Pedal...
« Reply #109 on: December 30, 2011, 04:17:53 PM »

Ok so i am doing a little thing here.. the PCB will fit in to a B enclosure.. BUT with the 24mm pots and IF i wanna have 9 volt battery in it.. i am @#$%ed... it will not fit in to a B box.. impossible..or ?  have u checked this up anything ?

My attempt

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deadastronaut
Posts: 9753


Rob H. LONDON


WWW
Re: 'SPITFIRE' Metal 'n' Blues Pedal...
« Reply #110 on: December 30, 2011, 04:23:31 PM »

i never use batteries......and only use mono jacks..

and whoa!...those are big pots...i use 16mm pots..then the middle pot can face backwards...

you need room for a dc socket too..and a toggle switch.... icon_eek






« Last Edit: December 30, 2011, 04:32:17 PM by deadastronaut » Logged

Perkla
Posts: 214


Re: 'SPITFIRE' Metal 'n' Blues Pedal...
« Reply #111 on: December 30, 2011, 04:28:06 PM »

i never use batteries...

and whoa!...those are big pots...i use 16mm pots..then the middle pot can face backwards...



I was just curious about if its possible to have a battery in a B box when building a Spitfire..we maybe i can use a B box.. but no battery will fit in.. so it will only be 9 Volt DC possibility..
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Perkla
Posts: 214


Re: 'SPITFIRE' Metal 'n' Blues Pedal...
« Reply #112 on: December 30, 2011, 04:34:19 PM »

The 16mm is not easy to ge my hands on over here.. :S in 99% of my builds are 24mm so thats why i almost only use them..
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J0K3RX
Posts: 1383


Jim - Earth 2014


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Re: 'SPITFIRE' Metal 'n' Blues Pedal...
« Reply #113 on: December 30, 2011, 06:29:26 PM »

Looks like a magic trick getting a battery into that box...?  I use 125B 4.77" x 2.6" x 1.39" enclosures most of the time just because they are deeper and I don't like fighting to get all the guts inside, plus it's only like .25 cents more so... I am sure you could get it to fit inside but you will have to pull some slick mojo... I would just use a 9V external power jack like Rob said... Is there a reason why you want to put a battery inside? You know, you can always solder a 9v battery snap connector to a DC plugin connector and use it external if you have to use a battery. Anyway, you are gonna love this pedal!!

Rob - Nice job on the new layout icon_biggrin
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If it sounds good, then it is good...
Perkla
Posts: 214


Re: 'SPITFIRE' Metal 'n' Blues Pedal...
« Reply #114 on: December 30, 2011, 07:42:03 PM »

Looks like a magic trick getting a battery into that box...?  I use 125B 4.77" x 2.6" x 1.39" enclosures most of the time just because they are deeper and I don't like fighting to get all the guts inside, plus it's only like .25 cents more so... I am sure you could get it to fit inside but you will have to pull some slick mojo... I would just use a 9V external power jack like Rob said... Is there a reason why you want to put a battery inside? You know, you can always solder a 9v battery snap connector to a DC plugin connector and use it external if you have to use a battery. Anyway, you are gonna love this pedal!!

Rob - Nice job on the new layout icon_biggrin

No.. no reason to use a B box.. just a tought if its possible, i will use a 125B enclosure for sure.. Cheesy, Yes a external battery clip is possible.. Cheesy
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J0K3RX
Posts: 1383


Jim - Earth 2014


WWW
Re: 'SPITFIRE' Metal 'n' Blues Pedal...
« Reply #115 on: January 02, 2012, 01:00:19 PM »

Rob, I made a board transfer for your second rev. with 1 switch, hope you don't mind icon_question It's really large so if anybody wants it they can re-size... I left in the ground plain so you can get a little more out of your etching solution... Happy New Year!

« Last Edit: January 02, 2012, 01:11:14 PM by J0K3RX » Logged

If it sounds good, then it is good...
WGTP
Posts: 2458


Re: 'SPITFIRE' Metal 'n' Blues Pedal...
« Reply #116 on: January 02, 2012, 04:32:10 PM »

I know it's late in the process, but the BSIAB II uses the 3rd jfet as a gain stage rather than a buffer.  So if you want more gain...  Wink

http://www.generalguitargadgets.com/pdf/ggg_bsiab2_sc.pdf?phpMyAdmin=78482479fd7e7fc3768044a841b3e85a
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J0K3RX
Posts: 1383


Jim - Earth 2014


WWW
Re: 'SPITFIRE' Metal 'n' Blues Pedal...
« Reply #117 on: January 02, 2012, 05:09:54 PM »

I know it's late in the process, but the BSIAB II uses the 3rd jfet as a gain stage rather than a buffer.  So if you want more gain...  Wink

http://www.generalguitargadgets.com/pdf/ggg_bsiab2_sc.pdf?phpMyAdmin=78482479fd7e7fc3768044a841b3e85a

WGTP

Does it have more gain than the spitfire? I have seen that one but have not built it, yet...

~ Jim
« Last Edit: January 02, 2012, 05:50:52 PM by J0K3RX » Logged

If it sounds good, then it is good...
deadastronaut
Posts: 9753


Rob H. LONDON


WWW
Re: 'SPITFIRE' Metal 'n' Blues Pedal...
« Reply #118 on: January 03, 2012, 11:14:10 AM »

i built that bsiabII^ , i couldn't get on with it, it was too muddy imo, thats why i explored it further.... Smiley

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WGTP
Posts: 2458


Re: 'SPITFIRE' Metal 'n' Blues Pedal...
« Reply #119 on: January 04, 2012, 12:16:07 AM »

I'm not sure how to measure or calculate the gain of the 2.  I think the bypass caps in the stage has allot to do with it, the resistance between stages and the number of stages.  For max gain, use big bypass caps, 22uf, minimize resistance between stages and use 3 of them.  That could present some problems with too much gain, not sure.  Wink

Here are some suggested gain mod to try.   icon_twisted

http://www.aronnelson.com/gallery/main.php/v/WGTP/Spitfire+Mods.jpg.html?g2_imageViewsIndex=1
« Last Edit: January 04, 2012, 01:23:09 AM by WGTP » Logged

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