The Jazz Guitar Chord Dictionary
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  1. #1

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    I have the below vintage Rhythm Chief. I need an adapter or a
    cable with a skinnier pin than my present cable has. Please,
    where do I buy such an adapter and or full length cable that will
    properly plug into my amp? Thank you.
    DeArmond Rhythm Chief - Jack Adapter-dearmondrhythm-chief-jpg

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  3. #2

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    One wonders why, since you were asking about the output cable jack, you didn't include a photo of the jack. Oh, well.

    Most likely this takes a 3.5mm mono phone plug (tip-sleeve or TS) - that's approx. half the diameter of a standard guitar signal cable phone plug (6.35mm). If you have a pair of headphones with a cable and a small phone plug around, that plug will be 3.5mm; you can insert that plug into your DeArmond to test for size and you won't hurt anything. There are a couple of other sizes of small phone plugs, but the 3.5mm version is by far the most common.

    You can get adapters at many computer stores and many music stores; you'll want a 3.5mm male to 6.35mm female adapter. Sometimes guitar stores also have 3.5mm TS phone plug - to - 6.35mm TS phone plug cables. You'll want mono audio (tip-sleeve) phone plugs, not stereo (tip-ring-sleeve) or 4 conductor (tip-ring-ring-sleeve) phone plugs.

    A disadvantage to using an adapter is that the combination of 6.35mm phone plug plus adapter is pretty heavy and might pull out of the pickup's output jack due to its own weight. A cable with a 3.5mm phone plug will be lighter where it attaches to the DeArmond than will an adapter.

  4. #3

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    Impossible to see the jack, and the size of it. It might be a 3.5mm (1/8"), or it might be something a little bigger, and I've seen (and have on hand) plugs near midway between 1/8" and 1/4". It's hard to make a recommendation about a source without knowing what the jack actually is. The originals were screw-on, but that doesn't look like it is, considering that most of it is invisible.

  5. #4

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    The screw on cables were replaced with a mini jack by the 60's, and yours looks like one of those. You can use a 1/4 jack to 1/8 jack adaptor (1/4 inch female to 1/8 inch male) or buy a cable that has a 1/4 plug on one end and a 1/8 plug on the other end. Archtop.com sells that configured cable for $49.

    ac accessories

  6. #5

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    Quote Originally Posted by Stringswinger
    The screw on cables were replaced with a mini jack by the 60's, and yours looks like one of those. You can use a 1/4 jack to 1/8 jack adaptor (1/4 inch female to 1/8 inch male) or buy a cable that has a 1/4 plug on one end and a 1/8 plug on the other end. Archtop.com sells that configured cable for $49.

    ac accessories
    Similar cables can also be found on Amazon for about $15.


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  7. #6

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    Thank you all for posting replies. I don't know the correct terms, my apologies.
    Using my dial caliper the opening is 0.1395 inch. Please see the two photos below.
    DeArmond Rhythm Chief - Jack Adapter-a2-jpg
    DeArmond Rhythm Chief - Jack Adapter-a1-jpg

  8. #7

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    0.1395 inches = 3.5 mm.

    One of the other respondents had a better adapter idea than mine, which had you putting the adapter on the guitar end of the connecting cable.

    If you put the adapter onto the amp end of a cable running from the guitar to the amp (and use a cable with 3.5mm phone plugs on each end), the excess weight of the adapter is borne by the amp, which is more stationary and can better manage the weight.

  9. #8

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    In terms of the sonic quality and durability of the cables available, I would suggest getting a 1/4" female to 1/8" male adapter and use a regular guitar cable. Something that looks like this:

    Hosa GMP-113 Adaptor, 1/4 in TS Female to 3.5 mm 1/8" TS Male Adapter | eBay

    Loop the cable up through the strap at the endpin to support the weight, so that there is only a short loop of cable from there to the jack. It'd be a little spendy, about $40 on eBay for a 10' cable, but a George L's .155 cable is thin, weighs much less and has excellent sonic properties. They are all I use.

  10. #9

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    Quote Originally Posted by HiFi Mule2Ride
    Hello. You may want to consider replacing the vol/tone/Jack control box to one with the standard 1/4” jack used today. The smaller number of connections in your signal chain the better.
    Below is the website to a gentleman that specializes in this. I have no affiliation but have heard only positive reviews.

    Shop – Panique Jazz
    That’s Vic Wong’s site. I had seen some of his repro DeArmond mounting parts in the past, but had not seen some of the other additions. That screw on cable to 1/4” adapter is very slick.


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  11. #10

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    Thank you all, very much!

  12. #11

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    I have a couple of De’Armond pickups with the same 1/8” input. I have tried using various types of adapters and was not happy with that approach, as it adds unnecessary extra connections and weight. I just use 1/8” to 1/4” cables, which is what was originally used for those pickups. You can buy them pre-made or just make them yourself if you know how to solder.
    https://a.co/d/h1mIXwo
    Keith

  13. #12

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    Last edited by AdvenJack; 12-23-2024 at 04:51 PM. Reason: Made an error