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DIYstompboxes.com  |  DIY Stompboxes  |  Building your own stompbox  |  My Crunch Box Version 0 Members and 1 Guest are viewing this topic. « previous next »
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Author Topic: My Crunch Box Version  (Read 8881 times)
Goodrat
Posts: 167


Rick Viola


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Re: My Crunch Box Version
« Reply #40 on: April 29, 2012, 12:05:25 AM »

With those 3 position switches you use, you should take a look at my idea using an on-on-on switch (SP3T).
Skip ahead to diagram G
http://rickviola.com/electronics.htm
« Last Edit: April 29, 2012, 12:07:25 AM by Goodrat » Logged
J0K3RX
Posts: 1383


Jim - Earth 2014


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Re: My Crunch Box Version
« Reply #41 on: April 29, 2012, 09:33:01 AM »

On the severe, what's the deal with the 100 ohm in series with the 1K?
Did I get something wrong there?
That makes no sense.


Yeah, that looks like a goof if you ask me... Here is one of many schematics I have found for the severe.


« Last Edit: April 29, 2012, 10:02:14 AM by J0K3RX » Logged

If it sounds good, then it is good...
J0K3RX
Posts: 1383


Jim - Earth 2014


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Re: My Crunch Box Version
« Reply #42 on: April 29, 2012, 09:49:17 AM »

Here is a video demo of the "Box of Hammers" layout (CB variant) that I posted on page 2. This is a double distortion being boosted with a TS808 circuit... The right side is the exact layout as on page 2.
It's being used as a preamp going direct into the fx return on a Blackstar, so it's only going into the power section bypassing the amps preamp.

I sent it to Mark Thompson of ShredKnowledge and he sent it to Sam Bell to demo... Sam is a Beast \m/ icon_twisted \m/

<a href="http://www.youtube.com/watch?v=-YrS-oyCHPI" target="_blank">http://www.youtube.com/watch?v=-YrS-oyCHPI</a>
« Last Edit: April 29, 2012, 09:54:15 AM by J0K3RX » Logged

If it sounds good, then it is good...
J0K3RX
Posts: 1383


Jim - Earth 2014


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Re: My Crunch Box Version
« Reply #43 on: April 29, 2012, 10:19:19 AM »

With those 3 position switches you use, you should take a look at my idea using an on-on-on switch (SP3T).
Skip ahead to diagram G
http://rickviola.com/electronics.htm


I have used and still use the on/on/on switches on some configurations but I like the sound without diode clipping so I use on/off/on... No diodes give a more vintage sound where the diodes give a more compressed modern sound. Plus on/off/on are easier to find.. You could always use a 6 way rotary switch as well is you want to have a lot of configurations... 
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If it sounds good, then it is good...
Goodrat
Posts: 167


Rick Viola


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Re: My Crunch Box Version
« Reply #44 on: April 29, 2012, 10:19:43 AM »

The extra 100 ohm is on this one too.
http://3.bp.blogspot.com/_XBLxtjUxez0/TSaZ1pRQGdI/AAAAAAAAAFM/z4EeVEZAFUM/s1600/SEVERE.PNG
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J0K3RX
Posts: 1383


Jim - Earth 2014


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Re: My Crunch Box Version
« Reply #45 on: April 29, 2012, 11:21:41 AM »


I believe you can leave out the 100 ohm... The original Severe has them both so it's not a goof.
« Last Edit: April 29, 2012, 11:26:02 AM by J0K3RX » Logged

If it sounds good, then it is good...
J0K3RX
Posts: 1383


Jim - Earth 2014


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Re: My Crunch Box Version
« Reply #46 on: April 30, 2012, 09:07:14 AM »

I think when I get some time I am going to try what WGTP said and try the diodes in the FBL of the second op amp! I haven't really done much of that for whatever reason but I know that all of the pedals that I have built that use this seem to sound and feel better! Maybe have it switchable from fbl to gnd? I also have quite a few BS170's... Gonna try that also as suggested..!
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If it sounds good, then it is good...
Goodrat
Posts: 167


Rick Viola


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Re: My Crunch Box Version
« Reply #47 on: May 02, 2012, 06:35:14 PM »

I thought I would add this:
http://www.rickviola.com/images/CrunchLowRV.jpg
I lowered the resistors but kept the same gain and freq response.
It sounds the same, but less hiss.

So here is the latest and greatest of my Crunch Box with simple tone:

With Presence
http://www.rickviola.com/images/Crunch2RV.jpg
Layout:
http://www.rickviola.com/images/CrunchLayout2RV.jpg

Without presence:
http://www.rickviola.com/images/CrunchRV.jpg
Layout:
http://www.rickviola.com/images/CrunchLayoutRV.jpg

I'm done with this Smiley

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michael_ibrahim
Posts: 22


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Re: My Crunch Box Version
« Reply #48 on: May 12, 2012, 05:27:09 PM »

Well done lads. You guys are my heroes  icon_biggrin
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