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Topic: Removing a screw connector from a Supro lap steel |
Tom Wolverton
From:
Carpinteria, CA
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Posted 26 Jun 2017 8:37 am |
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I wish to replace the screw-on connector on my Supro lap steel with a modern 1/4" female output jack. Is there an easy way to remove it? It appears like it is pinned in place by a steel pin from the top of the guitar. Do I have to drill out this pin (or extract it) before attempting to remove the main body of the screw-on connector?
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To write with a broken pencil is pointless. |
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Erv Niehaus
From:
Litchfield, MN, USA
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Posted 26 Jun 2017 9:02 am
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I wouldn't do that.
You can buy an adapter to go to a standard 1/4" jack. |
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Lee Baucum
From:
McAllen, Texas (Extreme South) The Final Frontier
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Jerry Overstreet
From:
Louisville Ky
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Posted 26 Jun 2017 4:28 pm
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http://www.oaktreevintage.com/Vintage_Style_Microphone_Cables.htm
This site lists an entire screw on cable for $43. If you already have a serviceable amphenol type screw on cable, I'd just use that.
You have to unscrew a 1/4 adapter to case it up, so you might as well use the threaded cable in that case.
We have an old National at the jams that uses them. Only thing I've had to do is build up a little solder blob on the center lead of the cable and it still works fine.
Anyway, maybe someone more familiar with these old Supros can advise you on modding the jack to a modern 1/4" female if you're determined to do that. Good luck! |
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Tom Wolverton
From:
Carpinteria, CA
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Posted 26 Jun 2017 6:04 pm
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Thanks for the info. I'd use the original jack possibly, but the center wire on it is all deteriorated. That's why I decided to go with a modern female jack. Also, I noticed that David Lindley did this mod to some of his Supros.
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To write with a broken pencil is pointless. |
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Jim Palenscar
From:
Oceanside, Calif, USA
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Posted 27 Jun 2017 6:23 am
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| I've done it Tom and the pin makes it a troublesome fix. I removed the nut on the other side, knocked out the inside of the original jack (from outside to inside)- then used a progressively larger drill bit to drill out the remaining parts of the jack- not for the faint of heart. |
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Tom Wolverton
From:
Carpinteria, CA
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Posted 27 Jun 2017 12:35 pm
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Jim, did you have to drill out that small metal pin going from the guitar top down into the connector body? Is it a locking pin? (can be seen in 2nd photo)
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To write with a broken pencil is pointless. |
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Michael Brebes
From:
Northridge CA
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Posted 27 Jun 2017 12:41 pm
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I would drill out the inside of the connector. Once you just have the shell left, you should be able to twist it away from what is left of the retaining pin.
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Michael Brebes
Instrument/amp/ pickup repair
MSA D10 Classic/Rickenbacher B6/
Dickerson MOTS/Dobro D32 Hawaiian/
Goldtone Paul Beard Reso
Mesa Boogie Studio Pre/Hafler 3000
RP1/MPX100 |
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Jerry Jones
From:
Franklin, Tenn.
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Jim Palenscar
From:
Oceanside, Calif, USA
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Posted 27 Jun 2017 2:28 pm
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| Oy- that solution looks tough as well. Yes Tom- I did drill out the pin with the ever increasing drill sizes- in this case a fortunate casualty of the procedure. Fortunately the old jack housing was acting as a drill guide so wandering wasn't much of an issue. |
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Tom Wolverton
From:
Carpinteria, CA
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Posted 27 Jun 2017 4:31 pm
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Jim, I'm talking about that small locking pin that is perpendicular to the axis of the jack. Looks to be about 1/8" in diameter. Did you drill that out too?
_________________
To write with a broken pencil is pointless. |
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Jim Palenscar
From:
Oceanside, Calif, USA
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Posted 27 Jun 2017 5:27 pm
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| Nah- just took it out w the rest of the jack. |
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Tom Wolverton
From:
Carpinteria, CA
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Posted 27 Jun 2017 5:48 pm
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Is this how the drill bits end up breaking? : )
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To write with a broken pencil is pointless. |
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Jim Palenscar
From:
Oceanside, Calif, USA
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Posted 27 Jun 2017 8:25 pm
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Those were end mills- different project -  |
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