#1
here's my idea, for those of us who like to save money by wiring things, we should start a thread to save all of our favorite schematics that have served us well in thier time, and give the rest of us a place to put in requests without filling up the forum with extra threads.

plus we can get answers from people who know what they're doing.

so, post, and beg away!

NOTE: the impedence for the 3 band EQ is too low for guitar, so you NEED to put the buffer before it. Just so nobody gets screwed (almost exact quote from That_Pink_Queen)

i'll start off, from my bass project, That_Pink_Queen discovered a 3-band EQ for me:
http://www.mitedu.freeserve.co.uk/Circuits/Audio/3band.htm

and also found a preamp buffer for the piezo:
http://generalguitargadgets.com/pdf/ggg_ic_buffer.pdf
Last edited by twelvestringtex at May 8, 2006,
#2
^Just as a note, the impedence for that 3 band EQ is too low for guitar, so you NEED to put the buffer before it. Just so nobody gets screwed
I'm not very active here on UG currently.
I'm a retired Supermod off to the greener pastures of the real world.
#6
^The buffer isn't that much of a burden...you don't need to make two seperate boards either, just put it all on one piece of perfboard. You won't need the buffer output cap in that case.

EDIT:
http://runoffgroove.com/mreq.html

http://runoffgroove.com/tonemender.html

Keep in mind the cap values will most likely need to be tweaked for bass frequencies.
I'm not very active here on UG currently.
I'm a retired Supermod off to the greener pastures of the real world.
Last edited by That_Pink_Queen at May 8, 2006,
#8
^No, the EQ needs the buffer before it to function....it should go like this:

Pickups(inc. piezo)>switches>buffer>EQ. If you use a high Z EQ circuit though, you can skip the buffer stage
I'm not very active here on UG currently.
I'm a retired Supermod off to the greener pastures of the real world.
#10




Gone and confused you have I?
I'm not very active here on UG currently.
I'm a retired Supermod off to the greener pastures of the real world.
#11
can i get a diagram for this

- standard 5 way strat switch

2 pots- tone and volume

- one humbucker in the bridge- and a tele neck in the front

- im using a pearly gates and a tele 73 RI neck pup

these positions-
1-humbucker
2-split hum- or tapped
3- hum and neck or/ split/tapped hum and neck
4- w/e the 3rd isnt
5-tele neck
#13
You can feed the piezo through the EQ too? What?
I'm not very active here on UG currently.
I'm a retired Supermod off to the greener pastures of the real world.
#15
Oh, sorry. Mind if I do it tomorrow? I'm pretty tired now.
I'm not very active here on UG currently.
I'm a retired Supermod off to the greener pastures of the real world.
#16
Quote by tongue untied

these positions-
1-humbucker
2-split hum- or tapped
3- hum and neck or/ split/tapped hum and neck
4- w/e the 3rd isnt
5-tele neck
Hmm, not possible with a standard 5-way. You can do it with a superswitch.

Edit: Something like this maybe..

These go to eleven...
Last edited by JimPlaysGuitar at May 11, 2006,
#17
You might to shift the bands on that EQ around a bit (10khz is a bit high for most guitar/bass applications, as well as your midrange probably being 2 or 3 hundred hz lower)

I'd try to figure it out but I'm no good at the math on these things :S
#19
^The buffer isn't a preamp...its just to match the impedences correctly...
You said the preamp isn't neccesary for the piezo?

And IMO its better to use a buffer in any case, as it helps keep the signal intact over long distances.
And yes, cap values will need to be subbed for that tonestack.

http://runoffgroove.com/mreq.html
That perhaps? You'll still need to adjust cap values.
I'm not very active here on UG currently.
I'm a retired Supermod off to the greener pastures of the real world.
#20
Quote by JimPlaysGuitar
Hmm, not possible with a standard 5-way. You can do it with a superswitch.

Edit: Something like this maybe..




i cant fit in a supers witch- its over 1/8 to big- and i dont have that much room to spare on the guitar

can anyoen think of a way to do it? or maybe adjust the positions thing a little- i just want to have hte hum tapped for shure, ya know?
#21
^Use push pull pots?
I'm not very active here on UG currently.
I'm a retired Supermod off to the greener pastures of the real world.
#23
the more i look at this eq problem, the more it goes over my head. that schematic looks like it'd work, but i honestly don't know enough about these things to tell.

i'm really starting to think about giving up on this particular pursuit.

EDIT: take a look at these. push-push pots. easier to use.
#24
Its simple...this is how it goes:

All pickups(including piezo)->selector switch->buffer->EQ(EQ can do volume too.)
I'm not very active here on UG currently.
I'm a retired Supermod off to the greener pastures of the real world.
#26
You can use alligator clips for heatsinks.
By now though, I've gotten good enough at soldering I don't use heatsinks. I just solder straight on.
I'm not very active here on UG currently.
I'm a retired Supermod off to the greener pastures of the real world.
#27
Quote by tongue untied
^ i would liek not to- but can someone post the schem for that? and a tele 3 way


These go to eleven...