Steel Panther - Pussy Melter  [traced]

General documentation, gut shot, schematic links, ongoing circuit tracing, deep thoughts ... all about boutique stompboxes.
dv8r601
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Post by dv8r601 »


Fast forward to 10:35 for the up close board shots.

Brad The guitologist just got his and takes one apart. Its hybrid smt thru hole, sounds sick as shit.
A500k gain
Bass(booty)c5k
Output 100k
Treble(sizzle)b10k
Opamp ca3240ez(dual bi-mos)
I did spot a sot23 n ch mosfet labeled mv near the clipping switch it also looks to have LEDs in the feedback loop

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Post by FeVeR2112 »

Pedalpcb.com has a board available and the schematic if interested... I was asked to build one recently... meh.

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toneman
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Post by toneman »

Schemo doesnt seem to be posted on pedalpcb site yet. :-(

just was interested in the topology.....

inquiring minds and all that.........
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toneman
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Post by toneman »

Hey bugg,
i saw that u are shipping boards for the melter. any idea when the docs will be posted? thanks.
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bugg
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Post by bugg »

Yeah man, docs will be posted soon... I'm way behind again. :lol:

Been swapping some computers around all week, should be starting to play catch up very soon.

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Post by dv8r601 »

Build Doc w/ schematic, courtesy of the Majestic Bugg,
https://www.pedalpcb.com/docs/FaceMelter.pdf
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Capturesppm.PNG

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Post by marshmellow »

No crackle? That is not ok. :|

And should have used the second opamp as output for proper melting.

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Post by plush »

So... No output from this power line? What's it's purpose then?
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Post by Intripped »

plush wrote:So... No output from this power line? What's it's purpose then?
that's how to properly connect an unused opamp

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Post by ppluis0 »

What is the need to use two resistive dividers to have two independent V/2 supply points ? :scratch:

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Post by toneman »

ppluis0 wrote:What is the need to use two resistive dividers to have two independent V/2 supply points ? :scratch:
1) easier trace routing

2) less interaction between stages

3) something else(?)
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plush
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Post by plush »

Intripped wrote:
plush wrote:So... No output from this power line? What's it's purpose then?
that's how to properly connect an unused opamp
well, yeah, but it could definitely be used for a better purpose.

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Post by rmroza »

A little late to the game, but question...

In the video, you can clearly see the values on the original.
There are at least THREE differences I see between the original video footage and Buggs' schematic and board!

1. R21 1k (buggs) => 10k (actual 103)
1. R26 1k (buggs) => 10k (actual 103)
1. A100K (Sizzle) => A10k (VR3)

WHY the differences?? Is there a betterment or else in error and so should use the actual values, which are 10k, 10k, and A10k as I indicated?!?

PLEASE CONFIRM

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Post by Optical »

Might be a mistake but those two resistors being 1k or 10k wont materially affect anything

The sizzle control seems wrong though, maybe that capacitor should be 10n instead of 100n?

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Post by equinox »

I communicated the same to Bugg directly. He's going to check it out and both ways (current and with those values) and see which is better. There may have been some differences in board between video and traced unit. We'll see.


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Post by Axldeziak »

Here's a craptacular tagboard layout I did a couple of months ago based on the pedalpcb schematic. I drew it up with a Ca3140 single instead of a CA3240EZ. No idea if it'll work, haven't built it yet.
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Pussy-Melter.png

Axldeziak
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Post by Axldeziak »

I did it for the lulz. I've been wanting to build one of these for awhile now.

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Post by Ichabod_Crane »

Pay attention, I guess that layout wrong.
This should be the verified one:

Image

Read here to be sure: http://guitar-fx-layouts.42897.x6.nabbl ... 45063.html
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Steel_Panther_Pussy_Melter.png

rmroza
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Post by rmroza »

:thumbsup

Still the open item of the values I indicated and why all these other designs (2 veros and 1 PCB by Buggs) are running on the same schematic?!?
Was there a change to the board? which is better?!??

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