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Projects => Build Reports => Topic started by: pryde on July 25, 2013, 06:27:36 PM

Title: Fuzz Bomb (contest entry) and demo
Post by: pryde on July 25, 2013, 06:27:36 PM
Introducing the Fuzz Bomb: PCB is the 1776 5 o'clock fuzz.  Custom etched enclosure. The transistors are from chromesphere (AC 125). Thanks! They sound great BTW. I added the pre-gain control as I do with all fuzz face builds. It really helps the low gain settings to sound warm. I really dig the treble bleed mod that Josh put on the pcb, another great mod to add versatility. I also modded the circuit to Mayer specs to squeeze more gain from it as well.

I tried to use etchant creatively with this build to "relic" the pedal to give it a sort of war-torn appearance. Notice the bullet indentations as well as the rustic yellowing on the rivet patterns. I have had the old jewel light for a long time and its aging is authentic. I thought it was a perfect fit for this pedal. Enjoy.

(http://imageshack.us/a/img593/8955/oosm.jpg) (http://imageshack.us/photo/my-images/593/oosm.jpg/)

(http://imageshack.us/a/img24/4333/tigp.jpg) (http://imageshack.us/photo/my-images/24/tigp.jpg/)

(http://imageshack.us/a/img534/1231/yoaz.jpg) (http://imageshack.us/photo/my-images/534/yoaz.jpg/)

(http://imageshack.us/a/img826/9746/zmkq.jpg) (http://imageshack.us/photo/my-images/826/zmkq.jpg/)

(http://imageshack.us/a/img15/7599/01m5.jpg) (http://imageshack.us/photo/my-images/15/01m5.jpg/)

(http://imageshack.us/a/img838/6176/mqlf.jpg) (http://imageshack.us/photo/my-images/838/mqlf.jpg/)


[soundcloud]https://soundcloud.com/jpparlier/fuzz-bomb[/soundcloud]
Title: Re: Fuzz Bomb (contest entry) and demo
Post by: fendman on July 25, 2013, 07:08:19 PM
Welll where do you start??  The etch is brilliant..down to the top of the knobs and the stomp switch and the slight wear here and there. and then you go inside and it is as old as the front of the enclosure with that big jewel of an led.

Listening to the sound track at the same time you get a great feel for what you are looking at.

Very nicely done, you are giving pickdropper (Dave) a big challenge with this one.

Brilliant

Mike
Title: Re: Fuzz Bomb (contest entry) and demo
Post by: midwayfair on July 25, 2013, 07:33:22 PM
Those knobs!

Fantastic etch, Pryde.
Title: Re: Fuzz Bomb (contest entry) and demo
Post by: Bret608 on July 25, 2013, 07:34:16 PM
This looks and sounds great! What did those Roger Mayer mods involve, parts-wise? Big fan of his work.
Title: Re: Fuzz Bomb (contest entry) and demo
Post by: cooder on July 25, 2013, 07:34:53 PM
Fantastic look and simply da bomb...!
What pot value are you using for pre-gain if I mayn ask? 50 KB? cheers
Title: Re: Fuzz Bomb (contest entry) and demo
Post by: midwayfair on July 25, 2013, 08:02:43 PM
Quote from: Bret608 on July 25, 2013, 07:34:16 PM
This looks and sounds great! What did those Roger Mayer mods involve, parts-wise? Big fan of his work.

http://www.geofex.com/article_folders/fuzzface/fffram.htm

The big one is the 1K in place of the 470R, which boosts the mids and the output. I actually go even bigger on that one, usually 2.2K or 4.7K.
Title: Re: Fuzz Bomb (contest entry) and demo
Post by: Vallhagen on July 25, 2013, 08:46:26 PM
This one is reeeeeally good looking! Great tasty etch indeed!

Cheers
Title: Re: Fuzz Bomb (contest entry) and demo
Post by: pryde on July 25, 2013, 08:54:04 PM
Quote from: cooder on July 25, 2013, 07:34:53 PM
Fantastic look and simply da bomb...!
What pot value are you using for pre-gain if I mayn ask? 50 KB? cheers

Yes a 50kb works well. you could also use a 100k with good results. just wire in series between the 3pdt and pcb input.

For the Mayer mod I did 1k in place of the 470R then used a 2k fuzz pot. You may also need to increase the trim pot to 50k to get the transistor bias back in range ~4.5v. It does add a good amount of additional gain which is good used in conjunction with the pre-gain mod. (wider range in both directions)

Title: Re: Fuzz Bomb (contest entry) and demo
Post by: jimilee on July 25, 2013, 09:27:40 PM
Fantastic looking! All I can do is enviro, when's the etching class? I got no laser printer, is this a must have or is there an easier way with an inkjet?
Title: Re: Fuzz Bomb (contest entry) and demo
Post by: jkokura on July 25, 2013, 09:30:12 PM
Don't take that within 1 mile of an airport.

Jacob
Title: Re: Fuzz Bomb (contest entry) and demo
Post by: pryde on July 25, 2013, 10:17:59 PM
Quote from: jimilee on July 25, 2013, 09:27:40 PM
Fantastic looking! All I can do is enviro, when's the etching class? I got no laser printer, is this a must have or is there an easier way with an inkjet?

Yep you need a laser printer. Look in your local classifieds, I found mine for $20. Its just a basic Samsung but that is all you need. I would be glad to share my limited knowledge with you if you score one  8)
Title: Re: Fuzz Bomb (contest entry) and demo
Post by: pickdropper on July 25, 2013, 10:22:32 PM
Whoa, that is fantastic.
Title: Re: Fuzz Bomb (contest entry) and demo
Post by: jimilee on July 25, 2013, 11:46:40 PM
Quote from: pryde on July 25, 2013, 10:17:59 PM
Quote from: jimilee on July 25, 2013, 09:27:40 PM
Fantastic looking! All I can do is enviro, when's the etching class? I got no laser printer, is this a must have or is there an easier way with an inkjet?

Yep you need a laser printer. Look in your local classifieds, I found mine for $20. Its just a basic Samsung but that is all you need. I would be glad to share my limited knowledge with you if you score one  8)
Thanks pryde, you're the go to  guy!
Title: Re: Fuzz Bomb (contest entry) and demo
Post by: lincolnic on July 26, 2013, 03:50:06 AM
Yep, this rules.
Title: Re: Fuzz Bomb (contest entry) and demo
Post by: raulduke on July 26, 2013, 11:09:34 AM
Fantastic etch and build.

Love the creativity on this dude!
Title: Re: Fuzz Bomb (contest entry) and demo
Post by: Cortexturizer on July 26, 2013, 12:28:33 PM
You are becoming one of my favorite builders.
Fantastic stuff man.
Title: Re: Re: Fuzz Bomb (contest entry) and demo
Post by: ch1naski on July 26, 2013, 02:26:03 PM
That really is a great etch. The added "relic" effect to the hardware is really cool.

Sent from my Nexus 7 using Tapatalk 2
Title: Re: Fuzz Bomb (contest entry) and demo
Post by: billstein on July 27, 2013, 12:54:04 AM
Nice man! Looks like it came right out of WWII.