AC128 Fuzz Face VERO layouts?

Started by mr.adambeck, July 30, 2009, 09:38:44 PM

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mr.adambeck

I can't find any AC128 vero layouts for a standard fuzz face (IE not a 69 Fuzz Face).  I was going to do the Fuzz Face on GGG, but thought I'd save myself 10 bucks and do it on vero instead of buying their circuit board.  ;)
I kinda need something that somewhat correlates to the GGG layout (at least component wise), since the transistors I ordered came from Small Bear, and came with their resistor values (which GGG tells you how to sub into their layout).

Can anyone point me in the right direction?


mr.adambeck

I did use the search function.  I don't think you understood my post.
I guess to be more clear, since my original message apparently didn't get what I was trying to say across: 

I am looking for either:

1) a VERO (not turret) layout, that has the same components as the GGG layout (so that I can follow their directions on how to swap the values SmallBear sends with their transistors)

or

2) I am asking for someone to kindly explain to me how to swap in the values that come with Smallbear AC128's into another similar fuzz face vero layout.

The resistor values in the vero layout you sent me (which I had seen already, when I DID use the search function, being part of what caused me to make my original post) are very different from the ones in the GGG layout (which also has more resistors and a trimmer).

The GGG layout can be found in PDF form on the following page: http://www.generalguitargadgets.com/index.php?option=com_content&task=view&id=101&Itemid=26 under "Fuzz Face Germanium Transistor Version", or directly by clicking here http://www.generalguitargadgets.com/pdf/ggg_ff5_lo_pnp.pdf.

Sorry if my first message wasn't clear enough, but please don't yell at me again.

mr.adambeck

Okay, so this is what I came up with in an attempt to translate the GGG layout, however, I'm pretty new to all this (especially to creating my own layouts), so if someone could look this over and let me know if I'm wrong (which I'm sure there's probably mistakes), I'd appreciate it.  I'm also sure there's a much more compact layout but as I said I'm new to this!


mr.adambeck

#4
[[Sorry, I am editing out an incorrect reply to my own post]]


jacobyjd

go to the layouts gallery, search 'dragonfly'. Andrew's gallery has 2 NPN fuzz veros, and many, MANY other fuzz vero layouts.
Warsaw, Indiana's poetic love rock band: http://www.bellwethermusic.net

Toney


Well definitely read GEO a few times... all you need to know right there thanks to the illustrious R.G.
You can try these....

First a basic PNP layout... very simple. MAKE sure you have a look at the schem at GEO first.
http://www.aronnelson.com/gallery/main.php/v/Toneys-Album/General+Fuzz+Face+Sensible.PNG.html

Here's a pic of the original board...
http://www.aronnelson.com/gallery/main.php/v/Toneys-Album/ff5_001.jpg.html

And a Vero designed to look like that. There are a few extra jumpers and cuts which are completely not necessary for functionality but give it the right "look" (kinda).

http://www.aronnelson.com/gallery/main.php/v/Toneys-Album/Standard+Ge+Real+look+Fuzz+Face.gif.html

Finally, on a completely unrelated note, here is a picture of a Turtle dove. It's adopted out house and become tame enough to hand feed.
We call it "Pidgy".
http://www.aronnelson.com/gallery/main.php/v/Toneys-Album/Turtle+dove.jpg.html



jrod

Hey mr.adambeck!

What were the resistor values that Small Bear sent you? Or did you figure out which ones to replace already?

Cool post, Toney. I like the "real look" layout. So, that's a turtle dove?!?!

Toney


Uh-huh.
Spotted Turtle-Dove Streptopelia chinensis  (Also called 'Chinese Turtle-Dove')  :icon_biggrin:

mr.adambeck

#10
Quote from: jrod on July 31, 2009, 10:58:19 AM
What were the resistor values that Small Bear sent you? Or did you figure out which ones to replace already?

here's the pack of transistors I got from small bear:


and here's how GGG says to swap them in:
"If you want to build a germanium transistor version, get your transistor set from Small Bear Electronics LLC and use the resistor values that he sends with the transistors. His resistor designations (R2, etc) are not the same as the designations on these projects. Here is the cross reference:

    *      SBE R3 - GGG R2
    *      SBE R4 - GGG R4
    *      SBE R5 - GGG R5 (not needed use the trimmer)
    *      SBE R6 - GGG R3
"


Any help on where to sub in these values?

jacobyjd

Here's the GGG schematic: http://www.generalguitargadgets.com/pdf/ggg_ff5_sc_pnp.pdf

Using the key you just posted, match the resistor numbers--then on whatever layout you use, verify the values of the schematic vs the numbers and you should have what you need.
Warsaw, Indiana's poetic love rock band: http://www.bellwethermusic.net

mr.adambeck

Okay, so just to follow through for everyone, here's what I got:
following this layout


R1 = GGG R2
R2 = GGG R4
R3 = GGG R3
R4 = GGG R5T (in other words, remove R4, use a 10k pot as trimmer)

...which then need to be translated to small bear values in order to get this thing going at it's "best"  :icon_redface:

So what about GGG's R5?  Its not in the layout.  Is it necessary to add?

Toney


Looking at the GGG "Fuzz Face germanium transistor version", their R5 (8.k) is the collector resistor for Q2, so in your case it will be covered by the 10k trimmer.

So if you are doing a trimmer don't worry about the small value resistor mentioned on the layout, just straight up replace R4 (on this layout) with a 10k trim pot. NOTE! The pinout of the layout you have chosen is ECB but no big deal, just make sure you follow it and you know the pin out for your trannies.

roseblood11

...but watch the pinouts!!! AC128´s are E-B-C, your layout has E-C-B ...

roseblood11

...but watch the pinouts!!! AC128´s are E-B-C, your layout has E-C-B ...