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Author Topic: Boss fz-2 owner question  (Read 6045 times)

BuGG

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Re: Boss fz-2 owner question
« Reply #15 on: December 29, 2019, 08:43:57 AM »
Quote from: imjonwain on December 28, 2019, 06:46:23 PM
Netnnk is going through his original pedal and I am drawing up a schematic of the OEM pedal with ref designaters and part numbers that match the BOSS ones so there will be a correct full schematic online soonish.

The Boss service manual is available.
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imjonwain

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Re: Boss fz-2 owner question
« Reply #16 on: December 29, 2019, 09:09:10 PM »
From Boss or just floating around?  I tried searching quite a bit.
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imjonwain

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Re: Boss fz-2 owner question
« Reply #17 on: January 15, 2020, 04:00:11 PM »
Correct and Verified Boss FZ-2 schematic.  I have this working using basically jellybeans too.
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JackSkellington

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Re: Boss fz-2 owner question
« Reply #18 on: January 16, 2020, 02:58:27 AM »
Great! ;)

Excuse me, what do you mean with this? «I have this working using basically jellybeans too.» ???
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somnif

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Re: Boss fz-2 owner question
« Reply #19 on: January 16, 2020, 05:05:33 AM »
Quote from: JackSkellington on January 16, 2020, 02:58:27 AM
Great! ;)

Excuse me, what do you mean with this? «I have this working using basically jellybeans too.» ???

"Jellybean" is slang for "any cheap transistor you have at hand", so things like the 2N3904, 2N5088, 2N2222, etc etc etc
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imjonwain

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Re: Boss fz-2 owner question
« Reply #20 on: January 16, 2020, 09:48:01 PM »
yup!

What I have it working with
Q1,Q2.Q11: 2n3904
Q3,Q4,Q8: J113
Q5,Q6: 2n5088
Q12,Q13,Q14: 2n3903
Q7,Q9,Q10: 2n5485
Q15: 2n3906
IC1, IC2: 4558

I honestly used things I had around and didn't order anything special.

Q9, Q10, Q15 can be sensitive.

Q1,Q2,Q5,Q6,Q11,Q12,Q13,Q14: 2n3904 or whatever would probably work fine for all them.

Mind your wiring or it will oscillate wildly.

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aion

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Re: Boss fz-2 owner question
« Reply #21 on: May 29, 2021, 08:21:47 AM »
If anyone's interested, I did a PCB for the complete FZ-2 circuit (including discrete pseudo-opamp boost) based on imjonwain's schematic -

https://aionfx.com/project/hypercube-fuzz-distortion/
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