[sdiy] roland gk-1

[harrybissell]

yes... maybe harry DOES :^P

The GK-1 has a number of functions.  It is a six channel preamp for
the hex pickup (it does not fuzz, just amplify).  It has the four knobs
for CVs, and an input for normal guitar (which you should NOT use imho
because its noisy !)

>From the hex pickup (g-vox should work fine) you need to run seven
wires to the preamp. From there you will need at least seven wires
to the Roland (if you don't care about the pots etc.)

I could look up the pin numbers for the cable if you need them. The GK-1
had all SMT components so if you go to build one, you will probably not get one
that small.

If you need to build your own clone, I'd suggest a DB-25 cable and a small BUD
aluminum box. Just don't drill it into your '59 Les Paul   :^P

See any of the AHMW photos for my remote guitar box.   I use a seven pin DIN
for audio and a 15pin HD for controls.   If I was a new design I'd use the DB-25

because its VERY available !!!

H^) harry

nN AAt e e wrote:

> > Anyone here familiar with the roland gk-1 divided pickup driver?  I have a
> > gr-100 and a gk-1 driver but no pickup.  the gk-1 driver has a 15 pin
> > attachment for the divided pickup, a controller box that mounts on the
> > guitar with 4 controller knobs and a guitar input jack as well as a 24 pin
> > output connector.  I need to build a pickup.  Does anyone know if any hex
> > guitar pickup will work? ( I think I have an old gvox around here
> somewhere)
> >   I have the service notes for the gk-1 driver.  The hex pickup connects
> by
> > a 15 pin connector.  Looks like low E goes to the first 3 pins and each
> > following string goes to the corresponding next 2 pins.  All I needed to
> > know was if the output of the gk-1 is different than any other divided
> > pickup or if any mods would be needed when using something like the gvox
> > divided pickup.
>
> yup, any hex pickup should work [wired correctly that is]... i've got
> pinouts and other stuff for the gk-2, but don't know if i have stuff for the
> gk-1... maybe harry does? also, see if you can find the patent pages online
> for the gk-1, since i'm pretty sure that has info on the standards roland
> has for the pickups.
>
> i'm not sure about the gvox... but the pickup from any 24 pin standard
> guitar synth pickup/controllers should work...
>
> you should also be able to use any divided piezo bridge with a synth pickup,
> though i'm not sure about that, search around and you will probably find
> something.
>
> - nate [ if you want to go all out and buy a semi-beat up g-707 and gr-700
> (w/ cable!) let me know :P ]