2 Switches to get 'em All on MM (S,P,SC-front,SC-rear) Pu?

[alexlotta]

Hi guys ,a question ..NEED DIAGRAM /schematics .

Took a used Set of Delano MM/J-FE for my GB75 .

ABout The MM pickup ,
Double (or Quad Coil ,dunno) :4 WIRES+SHIELD anyway.

-With One 3-position Switch ,It is Not possible to get ALL the combinations ,like : PArallel ,Series, Front coil ,Rear coil.

--Fact is , the bass has A SECOND switch installed that i DON't use ( Mid selector-booster ) ,and i would find more useful to get
all the 4 positions ON MM using 2 SWITCHES !

I could place the original switch Inside (just to Not desolder anything )
and place Another 2-positions Switch at his place.

In that way i would Like To get :

---1 switch (3-Positions) =to choose Rear Coil / Front Coil / Both Coils
And
---1 Switch (2-positions) =To get Parallel /Series (when Both Coils are selected) .

IT IS POSSIBLE?
I thought it would ,I figure it would be like a parallel /series Mods For jazz Basses
(in that case Treating the 2 coils On MM as jazz ones To simplify the Thinking ) ,
Where we have the 3-positions Switch acting as the "balance knob" ,
And the 2-positions Switch as the Series/parallel one.

But i'm completely clueless. Once i get some diagram ,i would let a local tech to do it.
I hope someone can Help Me about it
__________________
FOR THE COLOR OF THE DELANO-WIRES:
Here is the Delano Diagrams for The MM :
http://www.delano.de/uploads/tx_smtd..._wiring_15.pdf

I don't know if is Double or Quad coil , but number of wires don't change either (It's MC5FE or MC5FE/J model).

[Darkstrike]

It is possible.

I'd be more interested in getting a four way mini switch, if they exist, I know you can get a four way blade switch that'd do this.


For what it's worth, my GB-74 had the coil selector neck/parallal/both, and I found almost zero difference in the two coils soloed, so I went series/parallel/single, I just didn't have a need for both coils soloed as an option.

Good luck getting it done to suit yourself, though.

[alexlotta]

Considered already ,did'nt FIND Four-Way switch and i would'nt route the bass for the blade switch.Also even if i find a mini 4-way i figure would be rare and so expensive.

The (STOCK) Mid switch instead on the gb75 ,is Completely USELESS (it kills the sound of the bass imo) and I hear the difference between the coils that's why i would go that way,
i would have a choice More instead that one less..

>By The way,gb75 is rear/SERIES/front by Stock .

....Off Course i know..I will end choosing only One of The 2 single Regularly ;-),
but to know which , i have to try both for some time.

A second option maybe would Be Running in series/parallel The MM and the Other j as separate pickups ,
but that is a way i dont feel urge to experiment.

[line6man]

Actually, i had to draw this 5 months ago for a similar setup:



The first switch is Series/Parallel. The second switch is NC/HB/SC.
You must use the first switch is series mode when you go into a single coil mode, otherwise it mutes the output. This actually may be a useful mute switch as well.

[alexlotta]

Yep i 've thought it would happen as wired in THAT WAY (by the way ,THANKS).

Not by schematics ,but by logic (not able to draw any schematic,just looked at delano site and tried to figure out in my mind , for several hours of headache).
But I'm Trying to AVOId the kill-position ;-) .

For that reason i did put The example Of The jazz bass "series/parallel" mod ,because thinking in that way could bring someone else to the results i'm looking for.

I mean ,the Only difference should be that ,
INSTEAD of ANOTHER "BALANCE-Knob" (between front coil and rear coil ),should be a "balance-switch" .
!!If is possible for 2 regular single coil , why not for the 2 single coil of the mm?

...Or am i missing something ?
--Maybe is not possible to place a switch acting as balance between the 2 coils?

--!!Or Maybe a different kind of switch?
Looking on the web they are Switch with 6 and 9 legs,
and for the vol/balance jazz mod you need a 9 legs DPDT--found a post of line6man about it ..man i'm losing it badly..



Damn my School studies ,all theory (which You forget) and No manual practice at all..!!
*********************************************

[line6man]

if you want Series/Parallel/NC/SC without a mute, you are probably going to need a 4 position rotary switch with several poles so that rewiring the configuration is possible in each position.

Edit: Ok, i just did it out on paper.
You can use a 4P4T rotary toggle to get:
1-Series
2-Parallel
3-North coil only
4-South coil only

[alexlotta]

That's good and a choice to have and i will bookmark if You 'll draw.But I don't WANT to STEAL Your time in that way.

_____

Insisting In the "2 switches" configuration (So I would not to route anything) .

Found That on HArmonycentral :

"""You need a TPDT (triple pole double throw) switch.
They have 9 legs arranged in a square.

.\.
ADG
BEH
CFI
-------------
It goes like this :

A : to balance (it would be the 3 position switch in my case)
B : to ground
C : to balance (switch in my case)
D : to neck PU signal (coil in my case)
E : to neck PU ground (foreconnected to the... ground !).. what it means i dunno ,WHat means "Foreconnected"?.
F : to bridge PU signal
G : to the volume pot (soldered on the same leg as the wire coming from the balance. DON'T unsolder the balance, keep them together)
H : to I
I : to H

Your usual setup and sound will come out in one position.

In the other one, balance will be deactivated, volume will still work the same, but you'll have the series wiring sound.


Shield Groud wire can be soldered to whichever pot surface is more convenient.Pots and cap values can be different depending your needs."""

---------------------------

If I understand correctly in that way the Series-Switch would bypass everything else,
once disengaged you would get the other switch ( in that case, a 3 position or "balance" ) working as rear/both (parallel)/front.

The question is still ,can I use a 3 position switch instead of a balance?

[line6man]

Originally Posted by alexlotta

That's good and a choice to have and i will bookmark if You 'll draw.But I don't WANT to STEAL Your time in that way.

_____

Insisting In the "2 switches" configuration (So I would not to route anything) .

Found That on HArmonycentral :

"""You need a TPDT (triple pole double throw) switch.
They have 9 legs arranged in a square.

.\.
ADG
BEH
CFI
-------------
It goes like this :

A : to balance
B : to ground
C : to balance (switch in my case)
D : to neck PU signal (coil in my case)
E : to neck PU ground (foreconnected to the... ground !).. what it means i dunno .
F : to bridge PU signal
G : to the volume pot (soldered on the same leg as the wire coming from the balance. DON'T unsolder the balance, keep them together)
H : to I
I : to H

Your usual setup and sound will come out in one position.

In the other one, balance will be deactivated, volume will still work the same, but you'll have the series wiring sound.


Shield Groud wire can be soldered to whichever pot surface is more convenient.Pots and cap values can be different depending your needs."""

---------------------------

If I understand correctly in that way the Series-Switch would bypass everything else,
once disengaged you would get the other switch ( in that case, a 3 position or "balance" ) working as rear/both (parallel)/front.

The question is still ,can I use a 3 position switch instead of a balance?

Your talking about this kind of Series/Parallel, with a blend pot, right?


That is a different type of Series/Parallel switch which is used to wire two separate pickups series and parallel to each other as opposed to the Series/Parallel for the coils of a pickup.
I think you may have the two mixed up...

[line6man]

Originally Posted by alexlotta

That's good and a choice to have and i will bookmark if You 'll draw.But I don't WANT to STEAL Your time in that way.

Here's my hand drawing.
Sorry, my penmanship is horrible.
If you decide to go this route, I'll get you a nice neat computer drawing.

http://www.flickr.com/photos/jrkdesi...00497/sizes/o/

[alexlotta]

Originally Posted by line6man

That is a different type of Series/Parallel switch which is used to wire two separate pickups series and parallel to each other as opposed to the Series/Parallel for the coils of a pickup.
I think you may have the two mixed up...

I MiXed porpuosely (damn maybe i explained not clear enough,
sure blame of my english )

Since MM pickup Has 4 wires could not be treated as 2 Single pickups (speaking about wiring?) ,On configuring?.

I thought that if at the place of a balance i use a switch ,then it coud be treated wired the same.
Where it lies the difference?,
The coils share the ground ,but i dont think makes the problem.
HEadache returned.

[line6man]

Originally Posted by alexlotta

I MiXed porpuosely (damn maybe i explained not clear enough,
sure blame of my english )

Since MM pickup Has 4 wires could not be treated as 2 Single pickups (speaking about wiring?) ,On configuring?.

I thought that if at the place of a balance i use a switch ,then it coud be treated wired the same.
Where it lies the difference?,
The coils share the ground ,but i dont think makes the problem.
HEadache returned.

Ok, so you basically want a Series/Parallel switch with blend pot setup, but a pickup selector switch instead of the blend?

Sure, that should work fine.

[alexlotta]

wait (sorry , i'm abusing it but i'm really interested)
I mean :I have a balance on the bass.And that would need to Blend MM with J.

then =taking the MM pickup alone:
thinking at the 2 Coils as 2 separate pickups (front and rear coil thinked as pu's) using 2 switch ,
one to "blend" the 2 coils (front,rear ,"center" as parallel ),the other one to put the 2 coils (or "Pickups) in series.

It is also possible that i'm wrong about as i miss something.

******
I'm Really grateful For Your assistence,Please excuse my ignorance if said something dull

[line6man]

Originally Posted by alexlotta

wait (sorry , i'm abusing it but i'm really interested)
I mean :I have a balance on the bass.And that would need to Blend MM with J.

then =taking the MM pickup alone:
thinking at the 2 Coils as 2 separate pickups (front and rear coil thinked as pu's) using 2 switch ,
one to "blend" the 2 coils (front,rear ,"center" as parallel ),the other one to put the 2 coils (or "Pickups) in series.

It is also possible that i'm wrong about as i miss something.

******
I'm Really grateful For Your assistence,Please excuse my ignorance if said something dull

Ok, you can do NC/Parallel/SC with a Series/Parallel switch, but the compromise is going to be that the series option will over ride your ability to select either coil by it's self.

So basically, you have to set the Series/Parallel switch to parallel if you want to use either coil by itself.

Is that cool then?

[alexlotta]

Originally Posted by line6man

Is that cool then?

YES,
as so i was less dull than expected.

PS:Nice draw for the 4 rotary switch .
You should post it for other people if someone else would need it.

[line6man]

Originally Posted by alexlotta

YES,
as so i was less dull than expected.

Alright then.

So you want the Series/Parallel and NC/Parallel/SC switches for the MM pickup, with the MM and Jazz pickups feeding into a blend pot. No Series/Parallel switch between the MM and J pickups, right?
One volume and one tone? Do you have a preamp? Anything else?

[line6man]

Originally Posted by alexlotta

PS:Nice draw for the 4 rotary switch .
You should post it for other people if someone else would need it.

It's in with the rest of 'em:

http://www.flickr.com/photos/jrkdesi...7616015420655/

[alexlotta]

Originally Posted by line6man

Alright then.
So you want the Series/Parallel and NC/Parallel/SC switches for the MM pickup, with the MM and Jazz pickups feeding into a blend pot. No Series/Parallel switch between the MM and J pickups, right?
One volume and one tone? Do you have a preamp? Anything else?

The bass has a preamp ,Active/passive on volume (push/pull , bass /Highs active only on a stacked pot).
Planning to change preamp later on.
It has also a Passive Balance ( before the preamp stage).

It's untouched Stock for now.

[alexlotta]

Ok so it is possible .

But I'm still at the same problem from the very beginning ,
i would Need a schematics /explication
to adapt the 2 switches for that particular wiring .

By the way The "series" ON/ON switch for that Need would be a "3dtp" right?

[line6man]

Originally Posted by alexlotta

Ok so it is possible .

But I'm still at the same problem from the very beginning ,
i would Need a schematics /explication
to adapt the 2 switches for that particular wiring .

By the way The "series" ON/ON switch for that Need would be a "3dtp" right?

Ok, I'll draw you a diagram if you give me a day or so.

3PDT On-On switch for the Series/Parallel.
DPDT On-On-On switch for the NC/Parallel/SC

[alexlotta]

That's great THANK You Man ( line6*** )

Please take the time you feel right..
You are the kind soul who decided to lend a hand ,
'm the one who takes advantage of it

No Hurry

Thumb up,
Alex