jerry pedals

Re: jerry pedals

Postby mgbills » Wed Jan 08, 2014 8:15 pm

Waldo,
I buried this question above… but would the voltage increase from the Mu make it through the OBEL system to affect the preamp?

I could test it, but my dear wife is in the bathtub. Loud tube clipping exercises are best attempted when the only thing you torture is the cat (or dog, monkey, bat, or other pet).
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Re: jerry pedals

Postby waldo041 » Wed Jan 08, 2014 9:50 pm

mgbills wrote:Waldo,
I buried this question above… but would the voltage increase from the Mu make it through the OBEL system to affect the preamp?

I could test it, but my dear wife is in the bathtub. Loud tube clipping exercises are best attempted when the only thing you torture is the cat (or dog, monkey, bat, or other pet).


Yes, but you will have to crank it. More likely, if he used that function, he slammed the front of the Distortion+ with it to really push it. Just to note, an Alembic Stratoblaster is a clean boost preamp as well.

~waldo
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Re: jerry pedals

Postby Griffyote » Wed Jan 08, 2014 11:39 pm

Waldo! great comparisons. Do you happen to know the date of the third clip that shows the pedal steel set up on stage?? I'd love to hear the whole show!
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Re: jerry pedals

Postby TI4-1009 » Thu Jan 09, 2014 7:00 am

Pedal steel on stage should narrow it down to one of the Dylan shows. One of the six in July.
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Re: jerry pedals

Postby mgbills » Thu Jan 09, 2014 10:44 am

So in the case of the Earth Drive we have the following from Brad Sarno...

And perhaps Mr. Sarno will chime in here.

"The SMS Earth Drive is a very natural and versatile boost/overdrive pedal. It is designed to keep your guitar's natural character intact while letting you dial in a wide range of overdrive all the way from a clean boost to a very smooth and sustained clipping. The tone control can help you take some of that glass off the top of a bright pickup and/or overly clean amp. It's great for creating a natural amp-like push and feel at any volume. It works great for slide and steel guitar. It also works for bass guitar as it retains more low frequency energy than many overdrive pedals. It's the ideal pedal for helping to warm and fatten up a single coil pickup guitar going into a loud and clean amp."

We have the controls Volume, Drive, and Tone.
My assumptions are:
1) Volume will act as a boost.
2) Drive will act as a Gain, and also add diode/other distortion.
3) Tone will roll off the highs, and "Brown" the tone as it's rolled off.

So is this an Overdrive as stated, and simply colors the tone? Or a Booster with added goodies? Or an Overdrive which transforms into a distortion pedal (thereby redirecting the original tone) as the Drive is increased?

Sorry if this is a distraction to some. I really enjoy this sort of root analysis. It seems as though the whole topic of Distortion has needed this for a while in a broader venue than RuKind.
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Re: jerry pedals

Postby waldo041 » Thu Jan 09, 2014 11:40 am

mgbills wrote:"The SMS Earth Drive is a very natural and versatile boost/overdrive pedal. It is designed to keep your guitar's natural character intact while letting you dial in a wide range of overdrive all the way from a clean boost to a very smooth and sustained clipping. The tone control can help you take some of that glass off the top of a bright pickup and/or overly clean amp. It's great for creating a natural amp-like push and feel at any volume. It works great for slide and steel guitar. It also works for bass guitar as it retains more low frequency energy than many overdrive pedals. It's the ideal pedal for helping to warm and fatten up a single coil pickup guitar going into a loud and clean amp."

We have the controls Volume, Drive, and Tone.
My assumptions are:
1) Volume will act as a boost.
2) Drive will act as a Gain, and also add diode/other distortion.
3) Tone will roll off the highs, and "Brown" the tone as it's rolled off.

So is this an Overdrive as stated, and simply colors the tone? Or a Booster with added goodies? Or an Overdrive which transforms into a distortion pedal (thereby redirecting the original tone) as the Drive is increased?.


As Brad stated, it is was designed to perform both functions. Boost is it's own thing, but it is also a function of overdrive. The "Boost" effect is overdriving the input stage it is hitting. When it begins to overdrive the signal it receives is the point at which it changes to just an "Overdrive" per se'. When it is in Overdrive mode, and "Soft Clipping" the input signal, it is creating that smooth sustained clipping within the pedal. It is also slamming the front end of the input stage it is hitting doing the same thing there in some cases. The term clipping is simply the distorting of the original signal. It comes in two forms, soft and hard which also can be symmetrical or asymmetrical. Hard clipping devices are known as Distortion and Soft Clipping devices are general related to Overdrives. I say that to say this, The Earth Drive is not a hard clipping device, and was definitely not designed to achieve it, so it is NOT rated as a distortion device even though it is technically "distorting" the signal at some point. An MXR Distortion+ is a device that begins in the soft clipping stage but goes all the way to hard clipping and is rated as a Distortion device and not an Overdrive. I hope this all makes sense! :smile:

here is a good read to get you into the basics of distorting the audio signal = clipping.

http://www.geofex.com/effxfaq/distn101.htm

also, take a look at the brief description he provides for PRE and POST distortion EQ. I think we know someone who also experimented with this! :wink:

~waldo
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Re: jerry pedals

Postby mgbills » Thu Jan 09, 2014 3:33 pm

Very interesting Waldo! Thanks for the class.

Now lets invent a device to overdrive 6L6 power tubes without making ears bleed.
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Re: jerry pedals

Postby kurt eye » Thu May 15, 2014 3:39 am

I've been trying to round out my pedal board with good Jerry tone OD and Distortion. I have a strat-voodoo 69 pickups-fender HRDX-JBL K120 rig. I tried the Earth Drive - a very nice pedal, but I feel like a get a more familiar Jerry tone out of the cheap boss Turbo OD-2 i picked up. I also came across a custom made stratoblaster type pedal for a nice clean boost. Between the stratoblaster and Turbo OD-2, i feel like i don't have much use for the Earth Drive when it comes to Jerry tone. For distortion, I picked up an MXR distortion iii. Its not a pedal Jerry used, but I like what I heard in some of the demos and I thought it would be a nice versatile pedal. Unfortunately in playing around with it, I can't get any distortion out of it. Its really just an overdrive pedal. I can get a much dirtier sound out of the Turbo OD-2. I think I'll try the boss HM-2.
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Re: jerry pedals

Postby Searing75 » Thu May 15, 2014 5:02 am

Try using the earth drive as a mechanism to create slight breakup. I do this, and actually leave it on at all times outside of my effects loop. It helps make my Mac sound like it is clipping a bit.

Tone all the way up
Level around 11
Drive around 1
This works for my set up. Wonderful!

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Re: jerry pedals

Postby kurt eye » Mon May 26, 2014 4:22 am

I'm having an issue now my overdrive and distortion pedals and fender hot rod amp. My turbo OD-2 worked fine initially, but now I can't get any distortion sound out of it. I haven't been able to get any distortion out the the MXR distortion iii from the get go. I tried both pedals through a cheap line 6 solid state amp and they both worked fine.

Any suggestions would be greatly appreciated.
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