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Adding a treble bleed and/or 50's wiring to an Epiphone
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Will Chen
#1 Posted : Tuesday, January 24, 2012 10:36:32 AM(UTC)

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Anyone done this? My new ES-339 has their solderless harness so I'm wondering if I'm going to need to scrap the terminals or if I can work around them. I'll probably take a look inside tonight, but just wondering if anyone's done it.
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big_teee
#2 Posted : Tuesday, January 24, 2012 11:00:03 AM(UTC)
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Originally Posted by: Will Chen Go to Quoted Post
Anyone done this? My new ES-339 has their solderless harness so I'm wondering if I'm going to need to scrap the terminals or if I can work around them. I'll probably take a look inside tonight, but just wondering if anyone's done it.

On the new gibsons they are mounting everything on a circuit board.
Pots and all. Don't know what Epi is doing?
I'm old fashioned, but I still like a hand made wiring harness, and real soldered parts.
Good Luck,
Terry
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Will Chen
#3 Posted : Tuesday, January 24, 2012 12:41:54 PM(UTC)

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Yeah, Epiphone wiring isn't as extreme as Gibson. Just a plug to connect the pups to the volume knobs, I believe the rest is traditional. Just wondering if anyone's dug into the guts and if there's any gotchas to watch out for.
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Johnny Electriglide
#4 Posted : Tuesday, January 24, 2012 1:38:30 PM(UTC)
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If they are the same as regular vol pots, it is just a resistor and capacitor soldered to the (from the top, looking at the bottom) left and middle tabs (in addition to what is already there). I did it to a Carvin with the diagram sent me by Bill Lawrence ( I later sold the whole setup and put in reversed Texas Specials, no bleed). I guess you need better ears than mine to appreciate it. There's even kits for it.
I suppose with an LP you'd need two.
Up the Irons!
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Will Chen
#5 Posted : Tuesday, January 24, 2012 2:19:06 PM(UTC)

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Originally Posted by: Johnny Electriglide Go to Quoted Post
If they are the same as regular vol pots, it is just a resistor and capacitor soldered to the (from the top) left and middle tabs (in addition to what is already there). I did it to a Carvin with the diagram sent me by Bill Lawrence ( I later sold the whole setup and put in reversed Texas Specials, no bleed). I guess you need better ears than mine to appreciate it. There's even kits for it.
I suppose with an LP you'd need two.


Yeah I know what a treble bleed does and it certainly has an effect. But that effect is also dependent on the gain staging in your amp. Some amps/pedals have multiple gain stages in which the first is essentially a treble booster. In these cases, you don't really need a treble bleed as the darker which occurs when lowering your volume is counteracted by the treble booster. Now 50's wiring moves the tone circuit insert point from the input of the volume knob to the output. With the tone on the output, lowering your volume does not incur the loading of signal which occurs when the tone is soldered to the input of the volume knobs but now your volume and tone pots theoretically become interactive.
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big_teee
#6 Posted : Tuesday, January 24, 2012 2:25:45 PM(UTC)
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I tried the 50s wiring, and I never did care for it.
I always thought maybe I didn't know what I was doing.
I always like how they do in the Seymour wiring diagrams.
Some guys swear by it.
When I did it, it seemed to make the volume more full off, or full on.
Give it a try and tell us what you think.
It may have been my volume pot.
I think a more Linear pot would work better than the audio job I was using at the time.
T
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Swamp Yankee
#7 Posted : Sunday, January 29, 2012 9:59:01 PM(UTC)
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I have not cracked open a newer Epi either, but am intrigued by this 50's wiring concept. Tell me more. How do the pots become interactive? And to follow T's point - do the normal audio/linear taper pot rules still apply, or would we want new pots with that? And is the whole thing as effective as just modifying or adding the treble-bleed cap?

thanks
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big_teee
#8 Posted : Sunday, January 29, 2012 11:46:13 PM(UTC)
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Here it is on a word Doc.
Save it to your Hard Drive if you like!
T
File Attachment(s):
Les Paul 60s and 50s wiring.doc (358kb) downloaded 3 time(s).

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