OBEL wiring confusion

OBEL wiring confusion

Postby schmidtz » Mon Jun 13, 2011 12:58 pm

I am putting the finishing touches on my strat, but all of the wiring diagrams show 2 TRS jacks.

I had always thought that there would be one TRS jack (for the effects) and one TS jack for the output.

Am I just stupid?
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Re: OBEL wiring confusion

Postby strumminsix » Mon Jun 13, 2011 1:12 pm

schmidtz wrote:I am putting the finishing touches on my strat, but all of the wiring diagrams show 2 TRS jacks.

I had always thought that there would be one TRS jack (for the effects) and one TS jack for the output.

Am I just stupid?


Isn't one as a true TRS 3 unique interfaces while the other uses just 2 but the 3rd to sense if there is a cable?
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Re: OBEL wiring confusion

Postby Scarlet » Mon Jun 13, 2011 1:24 pm

You need a TRS jack for the OBEL send/return.
The other jack is TRS because the ring connection is used to complete the buffer circuit's 9V supply when you insert a standard mono jack in there (presuming you are using a buffer that is).
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Re: OBEL wiring confusion

Postby jackevorkian » Mon Jun 13, 2011 3:58 pm

Without it you'll be continually draining the 9v battery
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Re: OBEL wiring confusion

Postby schmidtz » Mon Jun 13, 2011 4:49 pm

So I just jam a mono plug into the TRS jack that connects to the negative battery wire?
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Re: OBEL wiring confusion

Postby waldo041 » Mon Jun 13, 2011 4:50 pm

if you poke around here, you might just find the answer you seek.

peace,
waldo
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Re: OBEL wiring confusion

Postby mijknahs » Mon Jun 13, 2011 4:54 pm

The TRS jack basically becomes a "switch". When you put the mono plug into the TRS jack, the "Ring" and the "Sleeve" connect and complete the circuit (I think it's the ground for the battery).

You could also wire an extra switch somewhere to do the same thing. It would basically turn your guitar on and off.
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Re: OBEL wiring confusion

Postby SarnoMusicSolutions » Mon Jun 13, 2011 5:02 pm

schmidtz wrote:So I just jam a mono plug into the TRS jack that connects to the negative battery wire?


Yup. This is exactly how nearly ALL guitar pedals operate as well. The battery ground becomes connected to ground thru the ring terminal via the sleeve of the mono guitar cord plug when inserted. When removed, the batteries don't drain.

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