Zvex - Box of Rock  [traced]

General documentation, gut shot, schematic links, ongoing circuit tracing, deep thoughts ... all about boutique stompboxes.
TMZ
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Post by TMZ »

Please use, if good.

Image
Last edited by TMZ on 17 Sep 2007, 00:30, edited 1 time in total.

TMZ
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Post by TMZ »

[quote="TMZ"][quote="TMZ"]Please use, if good.

grolschie
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Post by grolschie »

Why the many posts?

TMZ
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Post by TMZ »

It mistook. I am sorry.

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modman
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Post by modman »

TMZ wrote:It mistook. I am sorry.
No problem at all TMZ, thanks for sharing! We do have a lot of Japanese members, but there is still a language barrier.

I think a lot of people here would like know more about the Japanese DIY pedal world.

Welcome!
Please, support freestompboxes.org on Patreon for just 1 pcb per year! Or donate directly through PayPal

alsercol
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Post by alsercol »

This is a layout from ROX OF BOCK schematic that I made with KiCAD:

https://i108.photobucket.com/albums/n39/ ... .cobre.png
https://i108.photobucket.com/albums/n39/ ... B.comp.png
https://i108.photobucket.com/albums/n39/ ... /ROB3d.png

BOM:
  • Resistors:
    R1 82
    R2 1M
    R3 1M
    R4 5k1
    R5 470k
    R6 1M
    R7 1M
    R8 180
    R9 5k1
    R10 1M
    R11 1M
    R12 330
    R13 5k1
    R14 47k
    R15 82k
    R16 10k
    R17 10k
    R18 1M
    R19 5k1
    R20 4k7
    R21 4k7
    R22 1M
    R23 1M
    R24 47k

    Capacitors:
    C1 47uF
    C2 100nF
    C3 22nF
    C4 470pF
    C5 22nF
    C6 1uF
    C7 100nF
    C8 22nF
    C9 2nF
    C10 2nF
    C11 100nF
    C12 10uf

    Pots:
    RV1 C5K (GAIN)
    RV2 B100K (TONE)
    RV3 B100K (VOLUME)
    RV4 C5K (BOOST)

    Semiconductors:
    D1 Zener 9,1V
    D2 Zener 9,1V
    D3 Zener 9,1V
    Q1 BS170
    Q2 BS170
    Q3 BS170
    Q4 BS170
INB and OUTB are booster's. R20, R21 are limiter resistor for LEDs. PCB fits in a hammond B size.

:wink:

Jim777
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Post by Jim777 »

Very nice layout thanks. I wasn't aware of that Kicad program it looks interesting.

marshmellow
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Post by marshmellow »

Hahaa, the 3d view is really cool..

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guitarquiz
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Post by guitarquiz »

I will try too build one "Rock in a Box" :lol:

madbean
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Post by madbean »

My completed build:

Image

Image

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alteredsounds
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Post by alteredsounds »

Igloo wrote:Image

Image


:wink:
Quick question, is that boost section a seperate piece or is it just show seperately here as an example?

Also, Is 'Gain 3' connection marked twice and where is the output from? Vol 2 connection?

Many Thanks,

polarbearfx
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Post by polarbearfx »

I want to make a box of rock standalone distortion side only, I dont want the boost section. Anyone have a vero layout of this? Or can explain how I would go about this?

chris_d
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Post by chris_d »

polarbearfx wrote:I want to make a box of rock standalone distortion side only, I dont want the boost section. Anyone have a vero layout of this? Or can explain how I would go about this?
Check post #5 of this thread.

-chris

markm
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Post by markm »

Join together with the "Banned"!

madbean
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Post by madbean »

I'll plug my layout too, since it's the only PCB I've designed :oops:

http://www.mypicshare.com/kbq64rdjpic.html

markm
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Post by markm »

madbean wrote:I'll plug my layout too, since it's the only PCB I've designed :oops:

http://www.mypicshare.com/kbq64rdjpic.html
Great Name Bean!! :D
I like it!! :wink: :!:
Join together with the "Banned"!

polarbearfx
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Post by polarbearfx »

hey mark your layout looks tight. nice work. It looks like you did what I was looking for, you left out the extra sho and boost section. Nice, I might have to learn how to etch now. :)

Jim777
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Post by Jim777 »

I don't see the similarity between the BOR and the BSIAB. :? The more I look at the SHO the more convinced I am that the idea came from a big muff stage. And the suggestive name :wink: Mosfets bias up very similar to a bipolar transistor. The BOR looks more like a mosfet big muff without the diodes.

MoreCowbell
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Post by MoreCowbell »

Jim777 wrote:I don't see the similarity between the BOR and the BSIAB. :? The more I look at the SHO the more convinced I am that the idea came from a big muff stage. And the suggestive name :wink: Mosfets bias up very similar to a bipolar transistor. The BOR looks more like a mosfet big muff without the diodes.
The comparison comes from the fact that the BOR uses a Big Muff tone stack with the BSIAB2 values.

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Post by DougH »

MoreCowbell wrote: The comparison comes from the fact that the BOR uses a Big Muff tone stack with the BSIAB2 values.
I've heard that before too, and based on that alone IMO the claim that the BOR is a "BSIAB2 clone" is tenuous. My guess is Zvex saw how popular all the "amp sim" jfet circuits were and decided to take a stab at that approach with his beloved MOSFET.

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