Hurb's Pedal of Mystery - Finished!

Justin J · Post by **Justin J** » Sun Jun 22, 2008 6:11 pm

about a year ago i was doing inventory at work and i had to count boxes and boxes of those things.

James · Post by **James** » Sun Jun 22, 2008 6:14 pm

So what is this pedal? Was Kim right?

Post by **Mike** » Sun Jun 22, 2008 6:16 pm

Nope.

Post by **Mike** » Thu Jun 26, 2008 8:13 pm

How does this look in terms of layout, Hurb?

Two footswitches (with LEDs next to them to indicate status):
- On/off
- Octave on/off

Four controls: (L-R)
Fuzz
Bass
Treble
Volume

and on the back of the pedal (L-R):

Input
DC jack 2.1mm centre negative
Output

Post by **Hurb** » Thu Jun 26, 2008 9:27 pm

Looks really hot to me mike!! exactly as I wanted.

it's gonna fit OK?

Post by **Mike** » Thu Jun 26, 2008 9:39 pm

If I push the knobs down like that, then the jacks shouldn't interfere with them. I won't know until I drill for absolute sure but I'm putting the jacks as low down the back as possible to give them maximum clearance. I have an extra case in case I fuck it up. The board should fit A-OK between the knobs and the footswitches, though like Aen I'm taking a "DC jack only" approach as I go forward with designs now. Save the Cheerleader, Save the World.

aen · Post by **aen** » Thu Jun 26, 2008 9:42 pm

put some titties on it.

Almost nobody use batteries now anyway, except eric Johnson, and I doubt any mere human could create a pedal with enough mojo for him.

Post by **Hurb** » Thu Jun 26, 2008 9:43 pm

Mike wrote:If I push the knobs down like that, then the jacks shouldn't interfere with them. I won't know until I drill for absolute sure but I'm putting the jacks as low down the back as possible to give them maximum clearance. I have an extra case in case I fuck it up. The board should fit A-OK between the knobs and the footswitches, though like Aen I'm taking a "DC jack only" approach as I go forward with designs now. Save the Cheerleader, Save the World.

yeahfuck battery's anyway. cheers for the hard graft mike.

eh blue led's?

Post by **Mike** » Thu Jun 26, 2008 9:46 pm

Blue I can do. Do you not want a different one for ON and a different one for Octave?

Like Blue and Green
or Blue and Orange/Red?

What colour do you want the pedal? I don't have enough of any paint now after doing Malik's pedal and my homemade SHO so you might aswell choose a colour that you like.

Post by **Hurb** » Thu Jun 26, 2008 9:57 pm

Mike wrote:Blue I can do. Do you not want a different one for ON and a different one for Octave?

Like Blue and Green
or Blue and Orange/Red?

What colour do you want the pedal? I don't have enough of any paint now after doing Malik's pedal and my homemade SHO so you might aswell choose a colour that you like.

can has blue and green? green for octave blue for on.

not had a chance to get to halfords yet...would a metallic blue be a pain?

Post by **Mike** » Fri Jun 27, 2008 7:40 am

Blue and Green sounds cool to me. It should look ace.

Metallic Blue is doable, it would be awesome if you could give me an exact colour to go for, otherwise I'll have to just grab one. Dark, Medium or Light Blue?

Post by **Hurb** » Fri Jun 27, 2008 7:53 am

Mike wrote:Blue and Green sounds cool to me. It should look ace.

Metallic Blue is doable, it would be awesome if you could give me an exact colour to go for, otherwise I'll have to just grab one. Dark, Medium or Light Blue?

?

Post by **Mike** » Fri Jun 27, 2008 8:03 am

So like a GreenyBlue Metallic? I'll see what I can do mate. I plan to drill your case on Monday.

Either tonight or tomorrow I will hopefully get the values for the tone stack sorted.

After that and the case is done I should be able to finish hopefully sometime next week if everything goes smoothly.

Post by **Hurb** » Fri Jun 27, 2008 8:06 am

Mike wrote:So like a GreenyBlue Metallic? I'll see what I can do mate. I plan to drill your case on Monday.

Either tonight or tomorrow I will hopefully get the values for the tone stack sorted.

After that and the case is done I should be able to finish hopefully sometime next week if everything goes smoothly.

Nice one pal! so excited I may just wee.

Post by **Mike** » Fri Jun 27, 2008 8:11 am

I would say in the next two weeks is a definite, it all depends how everything goes and how smoothly it all goes together etc.

Post by **Mike** » Fri Jun 27, 2008 7:31 pm

Had a play with this after building Malik's Booster.

Made the gain sweepable and the octave switchable and replaced the current tone control with a bass and treble control.

Pretty much ready to continue and finish the veroboard, and then test it. Will do tomorrow if I get a chance, I'll be tidying the house and doing my washing most of the day, I imagine.

Post by **Hurb** » Fri Jun 27, 2008 7:33 pm

kooooool.
sonds when you can

Post by **Mike** » Fri Jun 27, 2008 7:37 pm

I suppose I could knock some up after the veroboard is done to show the different gain levels and effect of the controls.

Post by **Mike** » Sat Jun 28, 2008 4:02 pm

Settled on a Classic Fender tone stack for the Bass and Treble controls with a fixed mid control.

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Finished the Stripboard and it's working and sounding good. The vintage transistors in there mean we don't get such crushing loud volume in regular non octave mode but it's still above unity. I'll include some 2n5088s if you want to experiment with them also.

Post by **Mike** » Sat Jun 28, 2008 6:56 pm

Never mind what I said about the output volume in non Octave mode actually, I've figured out a way to raise the gain of the output amplifier stage. I breadboarded it up and added an emitter bypass cap which you can do to increase the gain of this type of bipolar transistor amplifier - it worked a charm. I'll solder one into the stripboard and we'll have volume to burn. Nice.

Getting really excited about you having this pedal now.