Gibson P-90H, Anyone split them ???

wild turkey

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I have a very nice Billie Joe Armstrong Jr that I'm not playing because of the noisy P-90h. I've shielded the guitar which should kill most of the hum but to no avail.
So my question is has anyone dissected the pickup or split the dummy coil & what was the outcome?
Was it back to a normal P-90 tone ?
Are these a standard P-90 with the dummy added ?

Thanks in advance
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wild turkey

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OK since I got no responses I guessed no one had done this

So I went ahead & done it
Its an easy fix that involves soldering 2 wires
& you get a real P90 back that is quieter than the original & doesn't have the mid range hump


Original reading was 13.5 ohms
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Stripped back the tape on the dummy coil ( bottom coil )
To reveal 2 sets of wires joined,
One set of white , 1 from each coil
And one black coming from the top coil going to the core of the braided wire

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I desoldered both connections & soldered the 2 wires from the main (top) coil to the braided wire
white wire to the core wire & black to the braiding its self
The dummy coils black wire was originally soldered to the braiding so I left it
I taped up the dummy white wire so its isolated

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Stuck everything back together & checked it with the multimeter again
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8.1 ohms is about average for a p90
Plugged it in & it started growling & barking at me with no midrange & lot less hum
Sounds as a p-90 should

Hope this is of help to a few of you !
 

suedehead

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Fantastic post. Glad it worked out for you. I was looking at getting a BJA but I'd have wanted a P-90 rather than the P90H. This might just tempt me....
 

wild turkey

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Thanks
My guess is its a regular P-90 with the dummy coil fitted ,you could remove the dummy completely by undoing the screw polepieces & no one would be the wiser
 

Taiki

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Hello! I bought Les Paul Jr BJA 3 month ago.
I don't like H-90 sounds and trying to separate dummy coil now.
I also have Les Paul special, I love P-90 sound!

The flicker's photo on this page is unavailable and I can't know process details.

Could you upload photo again?

Sorry if I have made any errors in my English writing.
 
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yamariv

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Just found this thread..OP so you're saying that your original P90 with the dummy coil had more hum than removing it to make it a regular P90? Something must have been wrong with the original P90h.. Glad you're happy with it now!
 

Taiki

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Thank you for uploading images!

I referred to these and could split the dummy coil.

I don’t know the sound is the same as original P-90 but my guitar sound was improved.

Thanks!!
 

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