Guitar Potentiometers part 3, Enlarging the Holes in Semi Hollow Body Top

http://www.planetz.com/?p=258 .
Typical guitar pots have a 3/8" threaded shaft. But import guitars often use pots with 8mm (~5/16") shafts. So to replace the pots, you need to enlarge the holes.

In this video, I demonstrate how to cleanly drill the holes for the pots in a semi-hollow body guitar. Coming up next will be wiring and soldering.

Category:

Howto & Style

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• 5/16
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[iloveJCmysaviour]

is that guitar a epiphany riviera??

[johnplanetz]

@iloveJCmysaviour - Epiphone Riviera P93

[michaelsuydam]

Thanks for the video. I'm just about to put a Jimmy Page mod on my Guild X-155 and noticed that the POTs were larger than the originals.

[ChronoGXay]

How many people tried to blow away the wood chips after he finished drilling? I did. XD

[mrcarepig]

beautiful guitar

[jameschoi999]

@jameschoi999 or in this case he said*

[jameschoi999]

1:42. thats what she said

[johnplanetz]

@zurdoremi - it's hard to analyze the circuit remotely, but my guess is that this switches in a resistor in parallel with the volume knob to jack. with the switch off, the resistor is disconnected / open-circuit. With the switch on, the resistor is connected, in parallel with the volume pot resistance, thereby lowering the overall resistance and causing a boost in the volume level. You should be able to replace it with any SPST slide switch with matching hole spacing. Hope this helps.

[noahwayne]

Excellent video.

[zurdoremi]

the entire wiring harness and pickups, is mounted on a carton just like in your videos, so I connect a guitar cord to the amp to test components the slide switch in question has two lugs only; 1 hot wire and ground comes from the cord Jack, connects to one lug and to case (ground); A second wire connects from the hot at the middle position of the toggle switch to the second lug. A resistor is soldered between both lugs of the slide switch. Value of resistor unknown.