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Unread 05-23-2011, 01:07 PM   #211 (permalink)
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Re: Favorite NPN PNP Transistors for FUZZ pedals?

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Originally Posted by guitar_slinger8 View Post
I've actually been trying to build a rangemaster but seems like there something wrong I have no signal and when I turn the knob all I get is static scratches.

PM me what value components you are using, and what the voltage readings are at B, C, and E then maybe I can help you get it sorted out.

Also the way the 10K pot is wired up to the Collector is kind of different, maybe you have a wire crossed there?
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Unread 07-18-2011, 09:04 PM   #212 (permalink)
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Re: Favorite NPN PNP Transistors for FUZZ pedals?

Ill be doing a bit of fuzz experimenting with a 2 stage circuit and was wondering if any of you guys could recommend a high gain transistor or two.

I have been working with some sample transistors i ordered off jonesy and have been messing around with the voltage resistance at Q2 and also some different EQ settings by having the cap at the start of the circuit switchable with 3 settings.

What i really want to start playing with is saturation levels. I would like to create a fuzz that hits thick distortion with tight attack and little mud.

If anyone has any schematic advice, transistor recommendations or input on how to add saturation to a low/med gain transistor circuit id LOVE to hear about it Ill be reading up on diode placement today and see what thats about.

Also, im unsure how to EQ the signal once it has passed Q1 & Q2? Looking to eq the voicing of the circuit instead of EQ'ing the signal before it hits the transistors. The idea here is to add bass after it has passed the clipping stage.
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Unread 07-26-2011, 06:57 AM   #213 (permalink)
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Re: Favorite NPN PNP Transistors for FUZZ pedals?

Just finished up this High Gain BC108C "Dual Fuzz" pedal. Built two separate Silicon Fuzz circuits that can be used together or separately.


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Unread 07-28-2011, 07:06 AM   #214 (permalink)
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Re: Favorite NPN PNP Transistors for FUZZ pedals?

Verycool!!! Nice transition in tones, well done Mr mojo. Dig the tunes too
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Unread 07-28-2011, 08:23 AM   #215 (permalink)
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Re: Favorite NPN PNP Transistors for FUZZ pedals?

Thanks Mook, I appreciate your input!
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Unread 08-03-2011, 03:42 PM   #216 (permalink)
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Re: Favorite NPN PNP Transistors for FUZZ pedals?

I just finished up this clean boost pedal based off a schematic I found by Jack Orman. It is actually a small part of the Big Muff circuit minus the diodes and uses a smaller resistor on E of Q1 to keep the signal clean. This Boost circuit uses one 2N3904 Silicon transistor (or BC108) and adds about 30 db of clean boost. Unity gain is about 12 o'clock. Nice warm boost that adds volume and punch not distortion.



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Unread 04-06-2013, 11:29 PM   #217 (permalink)
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Re: Favorite NPN PNP Transistors for FUZZ pedals?

You can pick up 2N5088's for $0.07 each at Tayda Electronics. I have had the best results with BC108B and BC-179 silicon transistors. You just need to be sure the gain (on a typical multimeter hfe setting) reads 200 to 300 and that seems to be the sweet spot. Haven't purchased BC-108 from Tayda as they don't carry them. Expect to pay between $0.48 and $0.60 each for good BC108's (Futurlec has good ones but takes forever to ship your order). Tayda's price and service absolutely rules.

I have used 2N5088's in my pedals but be sure you don't get the ones with gain around 500--the ones with gain around 300 sound much better.

-Dave Adams (a.k.a. swaptronics)


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Thanks bro, EXH originally used the 2N5088 on the Muff Fuzz pedals. They are high gain, low noise and I think they may add a little more clarity than the BC108's.

Here are the voltage readings off that 2N5088 circuit if you are interested.
The 9 v measured at 8.76 v

Q1
C 1.75
B .560
E .000

Q2
C 3.63
B 1.75
E 1.14
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Unread 04-07-2013, 07:52 PM   #218 (permalink)
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Re: Favorite NPN PNP Transistors for FUZZ pedals?

This Fuzz stuff is dangerously addictive
I have a few fuzz pedals & I want to build a couple different fuzzfaces & a tonebender mk1
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Unread 04-07-2013, 10:05 PM   #219 (permalink)
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Re: Favorite NPN PNP Transistors for FUZZ pedals?

^Yeah, I think i might tackle a foxx tone machine some day soon, or I might just buy one and be lazy I know I gotta have one again (use to rock one a while back but offloaded it)
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Unread 04-07-2013, 10:43 PM   #220 (permalink)
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Re: Favorite NPN PNP Transistors for FUZZ pedals?

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Originally Posted by jonesy View Post
Do you sell these, Jonsey? Or just the schematic, maybe?
Just curious....
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Unread 04-08-2013, 10:21 AM   #221 (permalink)
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Re: Favorite NPN PNP Transistors for FUZZ pedals?

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Originally Posted by dickjonesify View Post
Do you sell these, Jonsey? Or just the schematic, maybe?
Just curious....
He made up a batch and sold them. . .I don't know if he still makes them.

Maybe PM him and ask?
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Unread 05-09-2013, 04:19 PM   #222 (permalink)
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Re: Favorite NPN PNP Transistors for FUZZ pedals?

Jonesy, we need some more clips
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