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Author Topic: 2 Hum 2 vol problems  (Read 1785 times)

misriff

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2 Hum 2 vol problems
« on: April 19, 2012, 11:03:44 PM »
Hey there, ive got a Dean ML with 2 humbuckers, 1 normal volume. 1 volume push/pull, 1 tone and 3 way toggle.

Ive recently soldered in a Painkiller as a bridge pickup and a dean pickup as neck, with phase reverse mod on the push pull, however things are acting up.

When i have selected the pickups individually they are fine and it works, however if they are both selected they will both mute if i turn down just one of the volume knobs no matter which one of the two - what could be wrong ?!

Neck pickup is 2 conductor soldered to the normal volume pot, which then leads to the switch, and the painkiller is soldered to the push/pull knob with phase reverse mod, and this leads to the switch

darkbluemurder

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Re: 2 Hum 2 vol problems
« Reply #1 on: April 20, 2012, 09:32:30 AM »
When i have selected the pickups individually they are fine and it works, however if they are both selected they will both mute if i turn down just one of the volume knobs no matter which one of the two - what could be wrong ?!

Nothing - this is normal for this type of wiring and happens in all two pickup guitars with this set up like Gibson, Hamer, etc.

Some Japanese manufacturers addressed this "problem" by reversing the input and output wires on the volume controls. While this works it loads down the pickups even more when you turn back the volume pots. Sonically this means that when you turn down you get even less highs than with the normal wiring. That is why the modified wiring has not become the standard.

Cheers Stephan

misriff

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Re: 2 Hum 2 vol problems
« Reply #2 on: April 22, 2012, 09:52:32 PM »
alright thanks alot :D

frankus

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Re: 2 Hum 2 vol problems
« Reply #3 on: May 14, 2012, 03:46:49 PM »
Some Japanese manufacturers addressed this "problem" by reversing the input and output wires on the volume controls. While this works it loads down the pickups even more when you turn back the volume pots. Sonically this means that when you turn down you get even less highs than with the normal wiring. That is why the modified wiring has not become the standard.

um... you seem to be describing a Gibson's 50s wiring compared to a modern Gibson's wiring.

In the 50s the tone is wired to the output of the volume so as the volume is decreased the effect of the tone control decreases - I love my treble so I gave this a whirl in my tele (Lollar in the neck Country boy in the bridge) it was really unsatisfactory.

Far better (in my opinion) is to wire the tone control to the input lug of the volume and have a treble bleed to pull back some of the treble when the volume is turned down.

I set up a switch on the volume control to alternate which luge the tone fed from and the modern wiring (from the hot lug on the volume) gave a greater range of tone.

I was using a 1M volume pot and a 500K tone pot (with a five-way switch and a no-load option on position #5) so it could be the pots exaggerated the effect but I'd wired about 4 of my guitars before I decided I didn't like it :)

So I'd say to the OP why not move the tone control and add a treble bleed if you dislike the treble roll-off?

darkbluemurder

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Re: 2 Hum 2 vol problems
« Reply #4 on: May 15, 2012, 10:16:56 AM »
Some Japanese manufacturers addressed this "problem" by reversing the input and output wires on the volume controls. While this works it loads down the pickups even more when you turn back the volume pots. Sonically this means that when you turn down you get even less highs than with the normal wiring. That is why the modified wiring has not become the standard.

um... you seem to be describing a Gibson's 50s wiring compared to a modern Gibson's wiring.


No - these are two different things. 50s wiring puts the tone control to the output of the volume control instead of the input - as it is in the standard wiring. You described that one correctly. The "Japanese wiring" reverses the output and input connections of the volume controls. 

50s wiring is nice for some things. I guess the reason Gibson changed it was that the tone control behaves somewhat quirky when the volume control is turned down - it no longer decreases highs but bass and mids.

Cheers Stephan

frankus

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Re: 2 Hum 2 vol problems
« Reply #5 on: May 16, 2012, 12:12:28 PM »
okay, thanks for the reply - if I'm not being obtuse, you're saying the input is on the wiper?

darkbluemurder

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Re: 2 Hum 2 vol problems
« Reply #6 on: May 18, 2012, 02:21:09 PM »
okay, thanks for the reply - if I'm not being obtuse, you're saying the input is on the wiper?

Yes - that is with the "Japanese" wiring.

Cheers Stephan