Is the Jerry Donahue wiring scheme truly a mystery to the public?

Re: Is the Jerry Donahue wiring scheme truly a mystery to the public?

ArtieToo said:
Btw - The thing I was saying is screwy about the Peavey diagram, besides using non-standard symbology for the caps, is, look closely at the numbering of the superswitch.
On the right-hand side, the terminals go 4-3-2-1-5-Com. Took me awhile to figure out what the heck they were doing. :kabong:
Click to expand...

So do I wire them from left to right or by the numbers??? Yeah I agree peaveys schematic is well a little off.... buts its peavey...
 
Re: Is the Jerry Donahue wiring scheme truly a mystery to the public?

Firetele said:
So do I wire them from left to right or by the numbers??? Yeah I agree peaveys schematic is well a little off.... buts its peavey...
Click to expand...

Use the numbers. Or, if you can hold off 'til morning, I'll redraw that diagram correctly. I meant to do it today, and then got caught up in some other stuff. I'll have it up fairly early. (EST)
 
Re: Is the Jerry Donahue wiring scheme truly a mystery to the public?

Ok, here's my interpretation of the Peavey diagram. Colored squares on the superswitch are connected together so that you can prep the switch by just running jumpers between those points. Then make your external connections.

Peavey_JD.png
 
Re: Is the Jerry Donahue wiring scheme truly a mystery to the public?

Using a double-wafer superswitch, would the wiring be the same?
 
Re: Is the Jerry Donahue wiring scheme truly a mystery to the public?

Found this book on a search . . .

http://www.alibris.com/booksearch?S...t=p&siteID=M8GRZpy2zmY-I7FIari67afbvBWXXIEq3Q


. . . someone might like to know about it !


A question to some of you JD-wire'ing experts !

Will a good guitar tech be able to do the JD lay-out ?
I would love to get a Tele (or *tele shaped guitar) and get the JD lay-out, but it is all Greek to me !

*Something like this !
http://cgi.ebay.com/RAVEN-WST-elect...oryZ2384QQssPageNameZWDVWQQrdZ1QQcmdZViewItem


Thank you very much


James
 
Re: Is the Jerry Donahue wiring scheme truly a mystery to the public?

Zombie thread!!!!


Resurrecting this one because I too am very interested in adapting some of the JD wiring to a Gibson style axe.

Any insights, Artie?
 
Re: Is the Jerry Donahue wiring scheme truly a mystery to the public?

ArtieToo said:
Ok, here's my interpretation of the Peavey diagram. Colored squares on the superswitch are connected together so that you can prep the switch by just running jumpers between those points. Then make your external connections.

Peavey_JD.png
Click to expand...

what is the Purpose of the .022uf and the .033uf capicitors from the switch to ground? thanks
 
Re: Is the Jerry Donahue wiring scheme truly a mystery to the public?

Um, please come back and tell what's up with your JD wiring projects. I have been studying this great thread. I have a Fender Japanese basswood JD and decided to invest in the SD JD bridge and APS2 strat pickups (even though the JD has been revoiced for Omniac) The sound of the guitar with stock pickups was not good, the jack was cutting out, and the OTAX VLX91 was noisy. I ordered the Fender super switch, switchcraft jack, CTS pots. I haven't found the 6.2 K resistors (radio shack?). Without any info from you all on how any of this turned out, I'm planning to do the Artie mod to the Fender. To get the best OOP sound, If I knew how, I would probably use a pot to replace a resistor (which one?) in this diagram? I could not find a mini 10k pot.
 
Re: Is the Jerry Donahue wiring scheme truly a mystery to the public?

Just wondering if anyone went through with this, if so how did it turn out?
Vikki(uk)
 
Re: Is the Jerry Donahue wiring scheme truly a mystery to the public?

Resurrecting this thread again...

What I'm interested in is this - in response to this description of position#4 on the JD Tele's 5-way selector switch...

"By combining both pickups with a capacitor and resistor in a controlled degree of reversed phase, the guitar offers a bell-like, rich tone that echoes the classic Strat® sound. Until now, this sound could only be obtained by the use of the bridge and middle pickups on a typical Strat."

...Zhangliqun posted this:

"This position 4 thing is what interests me -- can anybody boil the diagram down to the two pickups, the cap and the resistor in this "controlled degree of reversed phase"? It would be the coolest thing to be able to dial up a fairly decent "cluck" tone on an LP without having to put in a middle pickup."

Zhang, I'm in total agreement with you. It would be cool indeed. But how, exactly, could it be done? I've sent a PM to Zhang - he replied that he never did get an answer to his question, but he's still interested.

Artie has disappeared...anyone else out there care to take a stab at this?

You could just be making this world a better place...
 
Re: Is the Jerry Donahue wiring scheme truly a mystery to the public?

I'm not an electronics expert, but are the pickups being phased or are the cap and res being phased? The wording seems to indicate the capacitor and resistor are what's being phased.
Is that even possible in a passive setup?


As for Zhang's question - you could convert it to a 5-way rotary diagram.
 
Re: Is the Jerry Donahue wiring scheme truly a mystery to the public?

YellowDog said:
Resurrecting this thread again...

What I'm interested in is this - in response to this description of position#4 on the JD Tele's 5-way selector switch...

"By combining both pickups with a capacitor and resistor in a controlled degree of reversed phase, the guitar offers a bell-like, rich tone that echoes the classic Strat® sound. Until now, this sound could only be obtained by the use of the bridge and middle pickups on a typical Strat."

...Zhangliqun posted this:

"This position 4 thing is what interests me -- can anybody boil the diagram down to the two pickups, the cap and the resistor in this "controlled degree of reversed phase"? It would be the coolest thing to be able to dial up a fairly decent "cluck" tone on an LP without having to put in a middle pickup."

Zhang, I'm in total agreement with you. It would be cool indeed. But how, exactly, could it be done? I've sent a PM to Zhang - he replied that he never did get an answer to his question, but he's still interested.

Artie has disappeared...anyone else out there care to take a stab at this?

You could just be making this world a better place...
Click to expand...

It's relatively easy to get the desired result. You just combine two coils which are magnetically opposite, and then combine them so that their winding direction is the same. Remember, the single coils in a Tele are humcancelling IOW they are RP/RW.

I have a diagram for a 5-way super switch which has:
1 - bridge humbucker
2 - bridge screw & neck screw in series & humbucking (magnet swap req'd)
3 - both humbuckers in parallel (stock LP)
4 - bridge slug & neck slug in parallel & humbucking
5 - neck

Which position do you want to replace with the out of phase? Also, I'd recommend doing the OOP in series instead of in parallel like the JD Tele, but can do it either way.

Unfortunately, I can't get to this until later next week.

Chip
 
Re: Is the Jerry Donahue wiring scheme truly a mystery to the public?

ArtieToo said:
Here's my variation: (Shown with tone control wired as the 50's mod.)

JDsuperswitch_alt.png


In the original wiring, the first two positions are:

neck - without a tone control
neck - with a tone control

That just seems like a waste to me. (Not that there's anything wrong with that.)

So in my variation, the positions are this:

1. neck
2. neck & bridge (parallel)
3. neck & bridge (JD wiring)
4. neck & bridge (series)
5. bridge

This gives you the "normalized" neck in #1, bridge in #5, with JD straight up, and the series/parallel options in the notch positions.

Artie

(Mind you . . . this is theoretical. I won't be trying it for a couple of weeks.) :)
Click to expand...

My buddy who's building my guitar for me tried this one with a Superswitch and can get all of the positions to work with the exception of position 1 the neck by itself. I'm not sure if Artie is still around to offer any advice? Or if perhaps one of his other diagrams might work better? Just an FYI to anyone else who might be considering the Omniac wiring for a Tele.

~MW
 
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Re: Is the Jerry Donahue wiring scheme truly a mystery to the public?

Yup, I'm still around. :)

I just saw this as I was getting ready for bed. I'll take a closer look at your question tomorrow.

Artie
 
Re: Is the Jerry Donahue wiring scheme truly a mystery to the public?

Thanks Artie! I just updated the original post. The attempt was with your 50's wiring modification.

Mike
 
Re: Is the Jerry Donahue wiring scheme truly a mystery to the public?

MykWiz said:
My buddy who's building my guitar for me tried this one with a Superswitch and can get all of the positions to work with the exception of position 1 the neck by itself.
Click to expand...

Ok . . . that diagram is definitely correct. In the neck position, the neck-ground is connected straight to ground, (upper left quadrant of the superswitch), and the neck-hot is connected straight to the volume pot, (upper right quadrant of the superswitch). Have your buddy recheck the connections.
 
Re: Is the Jerry Donahue wiring scheme truly a mystery to the public?

ArtieToo said:
Ok, here's my interpretation of the Peavey diagram. Colored squares on the superswitch are connected together so that you can prep the switch by just running jumpers between those points. Then make your external connections.

Peavey_JD.png
Click to expand...

I'm happy to report that this diagram does indeed work with a DiMarzio Superswitch. Thanks Artie! I appreciate you mapping this out for us!

~MW
 
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