R.G.´s Fake Fender/Brownface/Vibratone Layout here

[Morocotopo]

 Hi all, I made a layout for the Fake Fender/Brownface/Vibratone schem by R.G. It´s based on MarkM´s layout (check his in his gallery), I tried to make it a little smaller, and to use "straight" traces so that it can be made by etching or perf (although making it with perf will be a challenge, not impossible but not the easiest one). Some resistors are placed "standing up".
The layout is UNVERIFIED, I won´t have time to make it in a while, but I believe it´s correct, so if anyone wants to try it, here it is. If you spot any errors, let me know.
For the schem and parts values, go to www.geofex.com. The correct file there is "FakeFenderVib3.pdf".

Layout:


For etching:


For perf (attention: it´s not exactly like the one above). Just follow the outside dots:


Oh, by the way, what should we call this thing? FakeFenderVib? BrownfaceVib? ErsatzFakeBrownfaceFenderVibroToneTremoloTrebleBassJFETThing?

Comments welcome

Morocotopo

[David]

How about "Brown Polyester Vibrato"?
This covers the "brown", the "vibrato", and we all know that many textiles can be faked with polyester.

[Morocotopo]

A PM MarkM sent me (hope you don´t mind if I make it public, Mark):

"One thing you forgot to mention in your post is that the circuit you used is not entirely R.G.'s any longer as the last amplifying stage with the volume trimpot is something I added to correct low volume issues and does not appear on any schematic.
   Mark"

I stand corrected.

Morocotopo

[Paul Marossy]

Cool. 

[GREEN FUZ]

As it`s a Brownface, how about Fake Tan?

[markm]

A PM MarkM sent me (hope you don´t mind if I make it public, Mark):

It's a little too late for that.........
I did agree to this being posted without seeing it first.
http://www.aronnelson.com/gallery/v/MarkMs-Gallery/album15/album76/Vibrato+LAYOUT.png.html
What is the advantage of this layout over mine?
This layout will have component fit problems. 

[Morocotopo]

Sorry Mark if making your PM public bothered you, I did it with the intention of making clear to everyone who did what. Since the message was not of a private nature (or so I thought) I considered that it was Ok to make it public. Won´t do it again.

No "advantage" of this over your layout, just another one, made for the following reasons:

I tried to make it a little smaller, and to use "straight" traces so that it can be made by etching or perf (although making it with perf will be a challenge, not impossible but not the easiest one). Some resistors are placed "standing up".

Could you be more specific about where you see component fit problems?

Oh, by the way, I realized that the etching image is a bit low resolution and doesn´t have a scale on it, I´ll make a better one later and post it.

Morocotopo

[slideman82]

Y lo hiciste sonar? Que tal suena?

Saludos al inspector Ardilla.

[GREEN FUZ]

Y lo hiciste sonar? Que tal suena?

Saludos al inspector Ardilla.

Inspecting squirrel?

[slideman82]

Y lo hiciste sonar? Que tal suena?

Saludos al inspector Ardilla.

Inspecting squirrel?

Almost! Inspector Squirrel, and his right hand, Morocco Topo...

[Morocotopo]

Por fin alguien que sabe quien era Morocotopo!!!!!!!!!!

Seran dados.




No,  no lo hice sonar, como cuento antes, no voy a tener tiempo para hacerlo a la brevedad. Pero alguien lo hizo y posteó un sonido (no con este layout), y estaba muy bueno, no me acuerdo quien.  Ya lo haré...

Y lo hiciste sonar? Que tal suena?

Saludos al inspector Ardilla.

Inspecting squirrel?

Morocotopo was a character in a cartoon I watched when a kid, he was the sidekick of a detective squirrell, raincoat and all, he used a "turkish hat" (¿fez?)

Morocotopo

[GREEN FUZ]

Ah yes . Wasn`t he a mole? Spoke like Peter Lorre if I remember correctly.

[dschwartz]

yep it was a mole (mole= topo...morocotopo= mole from morocco ) nice nick..

this layout is verified? how does it sound?

[John Lyons]

Clarification:
This is the same circuit Markm layed out out with his Brownface vibrato/provibe/vibratone etc. R.G. did the dirty work on it...
It's a "brown face" Fender vibrato work a like bias wiggler vibrato.
Mark made this layout a few months ago. As far as I know only Ulysses and one or two others (other than mark) have built it an reported about it here. He posted sound clips as well. It's supposedly sounds very good.
Mark added the FET output to boost the level since it was reported to be a little less that unity in a couple or folks builds.

I have one almost finished but awaiting the FETs. I'll post clips of it when I've finished.

John

[David]

Por fin alguien que sabe quien era Morocotopo!!!!!!!!!!

Seran dados.




No,  no lo hice sonar, como cuento antes, no voy a tener tiempo para hacerlo a la brevedad. Pero alguien lo hizo y posteó un sonido (no con este layout), y estaba muy bueno, no me acuerdo quien.  Ya lo haré...

Y lo hiciste sonar? Que tal suena?

Saludos al inspector Ardilla.

Inspecting squirrel?

Morocotopo was a character in a cartoon I watched when a kid, he was the sidekick of a detective squirrell, raincoat and all, he used a "turkish hat" (¿fez?)

Morocotopo

Oh, now I remember!  You mean "Secret Squirrel".  Lord, I haven't thought of that in...  well, a long time...
Morocco Mole...   

[Morocotopo]

Clarification to the clarification:
This IS the same circuit that MarkM layed out.
This layout is NOT the same as MarkM´s, it´s BASED on his, but with some mods. For his, see his gallery.
This layout is UNVERIFIED.
I believe the people that built this schem used MarkM´s layout.
So David, you´re as old as I am...

Secret Squirrel... ehh.. I mean Morocotopo

[David]

Let's see if I can say this right.  "Probably older" would be "probablemente mas viejo"?

[markm]

Clarification to the clarification:
This IS the same circuit that MarkM layed out.
This layout is NOT the same as MarkM´s, it´s BASED on his, but with some mods. For his, see his gallery.
This layout is UNVERIFIED.
I believe the people that built this schem used MarkM´s layout.
So David, you´re as old as I am...

Secret Squirrel... ehh.. I mean Morocotopo

Sorry to interupt the Cartoon Network here........

Mods?
It looks like the same circuit with my mods?
Well, anyway......
I see a problem in the areas that the 1uF caps are and some of the areas where the electros are seem a bit "tight".
Unless one uses a vertical trimpot, the trimmer won't fit on the board.
C8-C7-C17-C18-C19-C20 will not fit well using standard size components and the result will be "cramped" board.
It should work but, again it will be tighter than......well, you know!
Won't the straight & 90 degree traces introduce more noise in this build?
Also, what are the dimensions because it doesn't look very much smaller than the one I made?

[snoof]

this layout is verified? how does it sound?

It sounds very good!  It almost has a Univibe quality to it.  I would describe it as half univibe, half Tremolo.  It doesn't really seem to have a lot of Vibrato to it, although technically it might be doing some of that.  It is kind of a busy build, but I recommend it nonetheless.  In addition, be aware that you must match two sets of the FET's.  My version was built form Marks layout, not this recent one.

[markm]

this layout is verified? how does it sound?

Morocotopo's layout is unverified.
Mine is verified and I think sounds fantastic!
I think many builders are intimidated by the high parts count and the size.
It's a Monster!!