Way Huge pcb...

[R.G.]

OK, chirren, so what reasonably common effects chip has a V- pin, but no power or ground and is not a transistor array chip?

[AL]

Any more pictures of this one?  I think one of the pictures posted is a reverse and it's slightly confusing??  

An LM3900 is a quad amp 14 pin - Pins 4 and 11 are outputs, Pin 14 is V+ and Pin 7 is ground.  That's probably nowhere near being correct but it is a common chip.  Maybe something from Craig Anderton or The Stompbox Cookbook?

AL

[AL]

Ooops sorry I meant the LM3900 WAS a common chip.  It was discontinued in 1999?

AL

[RDV]

AAWWW common Mr. Huge, at the very least let us have this one so we can flood eBay with copies and make a few much needed sawbucks off the 'pedaphoools' that shop there. :wink:  :wink:  :wink:  :wink:  :wink:

I'm only serious

RDV

[R.G.]

Ooops sorry I meant the LM3900 WAS a common chip. It was discontinued in 1999?

The MC3401 is still in production, pin and functionally equivalent. But that ain't the chip in question.

[Tim Escobedo]

long shot: MC1496

It's a weird chip to play with, kinda like a peculiar transistor array.

Then again, it's not really that common in effects but more in synth circuits.

[puretube]

isn`t the 1496 a double-balanced -modulator?

[amz-fx]

The CD4007 is the only common 14 pin chip that I can think of that doesn't have power input pins...  it has P- and N-substrates but no real power pins...  but that's not what this chip is.

It's not an LM3900...

It might be an LM324 so that is what I'll test soon...  

I've contracted friggin' bronchitis and had to go to the doctor yesterday so it's got me slowed down for now...  that and the fact that wives expect you to pay attention to them on Valentine's Day...  hey! we got a Way Huge pedal open here, honey.  We'll eat out another time!  

regards, Jack

[Mike Burgundy]

Best of health to ya, Jack! (and a place that sells 1000 roses for $15 )
Just have to say that this is a *very* interesting thread. Great example of multi-personal intelligence working it's magic, plus the rest of us is learning something. My list of options has (very early) been depleted, but seeing what someone else comes up with is still stirring ideas.

LESSON TO ALL:
never, NEVER stop asking "why?"

a big-Bambi-eyed, innocent face helps with this, I find

[troubledtom]

wishing you the best jack!!!
         - tom

[Ed Rembold]

Jack,
I hope you feel better real soon...
That "wives/valentines/WayHuge" comment had me laughing
outloud!

Thanks,
Ed R.

[Skreddy]

I've matched up the parts layout with the copper traces fairly accurately in PaintShop Pro as layers.  If you have this software or PhotoShop, you can do the same using the jpegs I've posted.  Also chip pinout and preliminary schematic suggestions.  

See http://happybob.com/marc/circuits/WayHuge/

[amz-fx]

That "wives/valentines/WayHuge" comment had me laughing outloud!

I'm glad somebody laughed because the ole lady didn't!!!  

The TL074 did not work and I don't have an LM324 on hand...  guess I have to hit  R-Shack tomorrow.

-Jack

[amz-fx]

I don't think it's a 4069 hex inverter either...

-Jack

[Mr.Huge]

Wow!
Who would a thunk a knucklehead like me could stump a community of intelligent electronic effects specialist.
Come on… It’s easier than you could possibly imagine.
Use the force young Jedi’s…

BEN: This time, let go your conscious self and act on instinct.

LUKE: (laughing) With the blast shield down, I can't even see. How am
I supposed to fight?

BEN: Your eyes can deceive you. Don't trust them.

Cheers,
-Mr. Huge

[Mr.Huge]

BEN: These are not the (droids) IC’s your looking for.

TROOPER: These are not the (droids) IC’s we're looking for.

BEN: (He) Huge can go about his business.

TROOPER: (You) Huge can go about your business.

BEN: Move along.

TROOPER: Move along. Move along.

[Peter Snowberg]

:lol:  :lol:  :lol: Mr.Huge, it's great to have you here!

Jack, I hope you are well soon.

Take care,
-Peter

[Steve C]

We know it's a modified BMP so, what about a quad transistor like a MAT04?  The pinout matches ( 4 and 11 ).  http://www.analog.com/UploadedFiles/Data_Sheets/524850917MAT04_d.pdf

[Mr.Huge]

Oh yeah, I forgot... Sorry... Feel better Jack. I'm finally feeling better after my NAMM flu!
Cheers,
-Mr. Huge

[Ed Rembold]

A long shot I'm sure-

LM/CA3046

Ed R.

( it might be entertaining to make a BMP from a CA3046 )