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Author Topic: What is GK pickup output?  (Read 280 times)
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dayn
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« on: February 26, 2010, 12:24:54 PM »

Most single coils are about 5-6k and humbuckers about 8-10k.

What is the output of the GK pickup? Ultimately I am wondering if there was a way to have a 13-pin cord modified to sum out all six magnetic pickups on the GK into one signal to then use with a conventional amp. Possible?
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Elantric
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« Reply #1 on: February 26, 2010, 01:01:51 PM »

Quote
What is the output of the GK pickup?

get an ohmmeter and measure each coil - and tear it apart - take lots of pics for re-assembly!!

I estimate each coil will measure 1k to 3k ohms.

Sure - connect them all in parallel - but it will no doubt sound quite brittle, zero warmth due to Bridge location -and require a buffer amp.

Watch out for the individual coil phase polarity of each pickup -  

More details here:

http://ftp.terratec.de/AXON/HELP_FILES/AXON_13-pin_Specification_v1.0.pdf


the DIN-13 pin 9 has the following spec:

__________________________________________________
GK-3A uses Pin #9

pin no. 9
Name: Guitar/Mix/GK Switch Status
I/O NC/O
Function (open)/select signal
Specifications:
OPEN : GK-2/2A compatible
0.521V(+/-5%) : GUITAR position of GK-3 compatible
1.042V(+/-5%) : MIX position of GK-3 compatible
1.563V(+/-5%) : GK position of GK-3 compatible

other conditions are prohibited

« Last Edit: February 26, 2010, 03:16:59 PM by Elantric » Logged
dayn
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« Reply #2 on: February 26, 2010, 03:29:22 PM »

Interesting stuff, thanks for the reply.

I am not thinking, nor would I attempt to modify the pickup.

I was thinking of a modified 13-pin cable that only has pin connections 1-6 for the guitar end, and then are wired at the other end for summed mono 1/4" output.

Any electronics whiz see any problem with that? I know piezo pickup systems put all 6 saddles signals together for a mono signal, so why not the GK?
« Last Edit: February 26, 2010, 03:31:03 PM by dayn » Logged
Elantric
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« Reply #3 on: February 26, 2010, 04:00:59 PM »

http://en.wikipedia.org/wiki/Electronic_mixer

Duplicate this as needed:





Since each "String signal" line is buffered and Lo-Z (due to internal GK-3A electronics) - a simple passive mixer may be employed

Start with 10k resistors for each "Rmix_n" resistor - use Six= one for each string

Swap values to taste.

Get a 13 pin female connector from Mouser or Digikey

« Last Edit: February 26, 2010, 04:05:50 PM by Elantric » Logged
paults
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« Reply #4 on: February 26, 2010, 04:16:39 PM »

You can try this without cutting/building a cable. Connect the 13 pin cable to the guitar, and touch the tip of a regular 1/4" cable to any one or more of Pins 1 through 6.

If you like the sound, Digikey has female 13 pin DIN Connectors, for your adapter cable. 

http://search.digikey.com/scripts/dksearch/dksus.dll?pname&site=us&lang=en&wt.mc_id=Dxn_US_US2010_Catlink&name=CP-1113-ND 

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Elantric
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« Reply #5 on: February 26, 2010, 04:22:01 PM »

Or build it into this box
http://www.parts-express.com/pe/showdetl.cfm?Partnumber=245-145
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kmaus10
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« Reply #6 on: February 26, 2010, 11:44:07 PM »

Why exactly would you want to do this?  To put it bluntly, I think, assuming you make it electronically possible, that it would sound like crap.
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dayn
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« Reply #7 on: March 01, 2010, 11:16:56 AM »

Quote
You can try this without cutting/building a cable. Connect the 13 pin cable to the guitar, and touch the tip of a regular 1/4" cable to any one or more of Pins 1 through 6.

Quote
Why exactly would you want to do this?  To put it bluntly, I think, assuming you make it electronically possible, that it would sound like crap.

Why? For fun; just to see what it sounds like. Looks like I have a solution to try out the tone.

Thanks for the tips and ideas everyone. I will report back the test results when I get a chance.
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