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Thread: Martin 0018E Control Harness

  1. #1
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    Martin 0018E Control Harness

    Anyone ever look into one of these?

    Was looking into this stuff yesterday. Measured DCR, inductance & impedances at various control settings through the window of the output jack; this harness was anything but conventional.

    Will likely sketch out a likely diagram from the info, then may yank it all out and have a look.

    However, if anyone has any experience and/or a schematic for this harness I'd certainly be interested. I'd certainly like to know if they're all like this or if this one is a result of creative efforts executed sometime during the last half century or so.

    Bob Palmieri

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  2. #2
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    I see this: https://www.martinguitar.com/feature...ix-vt-enhance/ which says it's a Fishman system if it's also what's in your guitar. No surprises there.

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  3. #3
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    Sorry!! I seem to have neglected to point out that Iím referring to an original 0018E from 1959 with a DeArmond mag and Volume/Tone controls screwed into the top...

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  4. #4
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    Quickly, my assessment at this point is that what we have here is a pickup-to-the-wiper volume control coupled to a series tone control with cap across it.

    So, with tone on 0 you get the (very bassy, 7.something henry) pickup itself but tone on 10 gets you the pickup through a pretty serious highpass filter.

    Tone on 5 is a surprisingly viable spectral balance (through a pretty fancy hi-z direct box) through the studio monitors.

    I've secured permission to yank all this stuff out and have a look, although this might not happen for a few weeks.

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