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Topic: Rack And Barrel Question |
Alan Cook
From: Kent,England
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Posted 12 Aug 2009 1:57 pm
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Which way round should the rack be against the barrel? Hard to explain and I don't have a camera to take a pick but I have been looking at the various threads on the forum and some pics show the rack like this [- BARREL and some like ]- BARREL The one I am working on is as {-BARREL and I think it is the wrong way round. The tuning is not always the same when you press the pedal.
Alan |
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Skip Edwards
From: LA,CA
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Posted 12 Aug 2009 2:05 pm
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Like so...
Changer is to the left of the pic... |
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James Morehead
From: Prague, Oklahoma, USA - R.I.P.
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Posted 12 Aug 2009 8:14 pm
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Not sure exactly what you mean, so I apologise if you already know this. But here goes----------
If your barrels look like Skip's picture, they are right. Then you need to tune clockwise or counter clockwise to raise or lower the pitch. Now remember, if it's a lower, it will tune opposite of a raise.
If your pedal/knee lever raises the note, the tuning(Pullrod at the endplate by the pickup) rod will be in the upper hole(s) of the finger, and to make the note sharp by tuning the pullrod, it will turn clockwise.
If your pedal/lever lowers the note, the tuning rod will be in the lower part of the finger, and to, say, tune your note sharp, it will need to move counterclockwise.
Of course, just opposite is true if you need to lower pitch(flat your note)
Of course, to tune your endplate tuners, you press your pedal--and I said that to say this--when you let OFF the pedal your barrel should be slightly loose and a little distance away from the rack so the spring knub misses the rack. If it touches the rack when you let off your pedal, you will just detune it if you tune any other barrels on the same rod.
Hard to explain--it's confusing to put in words. Hope this helps some. I love the rack and barrel 'buds. |
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Skip Edwards
From: LA,CA
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Posted 12 Aug 2009 8:43 pm
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What James said.
One other thing...Don't try to set up your pulls to have both strings on a rack to start at the same time.
You'll just muck it all up.
Since strings of a different thickness need to travel different distances to reach a pitch, the string that needs to travel less will start later...meaning that particular barrel will have a little more slack off the rack. For ex... on your Eb lever, the 4th string travels further than the 8th string. They both end up at Eb at the same time, but the 8th string will start pulling a little later.
A properly adjusted RnB setup is a joy to play. Fast, versatile and pretty much bullet-proof.
Plus, they're attached to really cool old Buds... |
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Alan Cook
From: Kent,England
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Posted 12 Aug 2009 10:50 pm Rack And Barrel Question
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Thanks for the replies looks like they are all in the wrong way round. This is the pic I saw that made me question there position and shows them the correct way round.
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Alan Cook
From: Kent,England
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Posted 13 Aug 2009 2:16 am Rack And Barrel Question
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I have just changed them all the racks round and it plays like a dream now and stays in tune. The only issues are two of the allan grub screws are worn in the allan key hole and one of the barrel spring tips has worn off, probably from rubbing on the rack when it was the wrong way around. Does anyone know where:
I could get another spring?
What size and thread the grub screws in the barrel are?
What is the correct size allen key for the grub screws?
Thanks again everyone
Alan |
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Nic du Toit
From: Milnerton, Cape, South Africa
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Posted 13 Aug 2009 2:25 am
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Don't get a new spring. Tom Bradshaw mentioned that you just unscrew the barrel, take off the spring, unwind a bit off the spring and straighten that end with pliers. Use a good barrel to check if the length of the straight part of the spring is right.
Then put it back again. If it is still too long, just clip it. |
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Alan Cook
From: Kent,England
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Posted 13 Aug 2009 2:28 am Rack And Barrel Question
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Great tip Nic I'll do that.
Thanks
Al |
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James Morehead
From: Prague, Oklahoma, USA - R.I.P.
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Posted 13 Aug 2009 6:38 am
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Also, While you are in there doing what Nic says(right on, Nic!!), just take a couple good barrels with good set screws(grub screw) and head out to your favorite hardware store. Buy a half dozen or so extra setscrews and a few allen wrenches to have on hand. You will be squared away. Enjoy |
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Russ Wever
From: Kansas City
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Posted 13 Aug 2009 8:26 am
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Quote: |
unscrew the barrel, take off the spring, unwind a bit off the spring and straighten that end with pliers. |
It's very difficult to form a tight, right-angle bend let alone straighten out wire that has been formed into a coil.
I get better a result by disassembling the barrel, and using a lathe, drill press or even a vari-speed hand drill, turning the male-threaded half of the barrel and with a cutting tool, even a file in a 'pinch', removing some of the 'face' from that piece, resulting in a shallower 'shoulder' on the end. This means that the small hole thru which the straight part of the spring goes thru will be shorter, thereby exposing more of the straight end of the spring, allowing it to now 'catch' on the rack.
~Russ |
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John Groover McDuffie
From: LA California, USA
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Posted 13 Aug 2009 8:44 am
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I don't think the tip of that spring is essential. |
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James Morehead
From: Prague, Oklahoma, USA - R.I.P.
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Posted 13 Aug 2009 8:50 am
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John Groover McDuffie wrote: |
I don't think the tip of that spring is essential. |
I respectfully disagree. That spring tip is critical to the barrel functioning properly. If it wasn't essential, Shobud would have never bothered with them. |
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Alan Cook
From: Kent,England
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Posted 13 Aug 2009 9:11 am Rack And Barrel Question
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All I need now is the screw size and thread type, looks like 1/8" whitworth? and also the correct allan key size, I could go to the local hardware store but would like to know first if possible.
The spring tip does catch the rack so that the adjuster works, for the minute I am just reaching under and holding the end of the broken one to tune it, not a big problem for now but will sort it when I have the set screws.
Is it possible to identify the age from the serial number 2575 stamped on the underside of the guitar? It is a blond s10 with wide pedals and teardrop levers 3X5 It has an fabulous sound.
Thanks all
Alan |
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James Morehead
From: Prague, Oklahoma, USA - R.I.P.
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Posted 13 Aug 2009 9:48 am
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Don't worry about the size--just match up the one you take in with ya. I'd tell, ya, but I don't know myself. Just match it up.
Serial numbers on a shobud don't tell you much. If you have a few pics you could post, we could ball park the age for you. That's about the best you can do.
And yes, They are a real awesome tone monster. |
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Alan Cook
From: Kent,England
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Posted 13 Aug 2009 10:46 am Rack And Barrel Question
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A big thanks to Mr Coop for the promise of springs and screws, I'll post some pic when/if I ever get my camera back (another long story)
Cheers y'all
Al |
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Skip Edwards
From: LA,CA
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Posted 13 Aug 2009 1:08 pm
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Yeah, Sho Bud serial numbers don't really tell you much.
For what it's worth, my S10 is #2752, and I bought it new in late '72. |
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Tom Bradshaw
From: Walnut Creek, California, USA
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Posted 13 Aug 2009 6:27 pm Repairing a tuning tube
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Nic is correct. When the tip of the spring wears down, there is nothing to grab the bellcrank and hold the tuning barrel (when a pedal is depressed) so the string pull can be adjusted. To correct this, first cut off the straight right-angle end of the spring, then form a new straight piece using needle-nosed pliers. You simply bend a right angle in the newly formed straight piece of the spring. Re-insert the straight edge into the small hole in the tuning tube/barrel. Cut the end of the straight piece of the spring so that it protrudes out the small hole about 1/6". It should now work just fine until you wear that tip off again. When that happens, repeat the repair process.
Last edited by Tom Bradshaw on 14 Aug 2009 7:12 am; edited 1 time in total |
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Alan Cook
From: Kent,England
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Posted 14 Aug 2009 2:09 am Year of manufacture
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I looked on the Sho-Bud site and looks like they were manufactured between 1970 and 1973. If Skips number is anything to go by I guess it must be pre 72. I was told it was made for Denny Laine from Wings!! not very impressive I know and probably why it has very little wear Ha ha. It's the only one I have see with 5 knees but I suppose these could have been added later.
Al |
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Bill Moore
From: Manchester, Michigan
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Posted 14 Aug 2009 5:05 am
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Alan, I believe the correct size for the set screw is 1/8" x 6-32. I don't think it's interchangeable with the Whitworth sizes. |
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John Billings
From: Ohio, USA
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Posted 14 Aug 2009 5:41 am
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Just for fun;
Worked just fine from '67 on! |
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Alan Cook
From: Kent,England
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Posted 14 Aug 2009 6:56 am Rack And Barrel Question
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You can see it in action here although you cant really hear it until the end of the song the BBC edited the middle solos out because the song was too long.
http://www.youtube.com/watch?v=WhEe4D1QArc
Al |
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James Morehead
From: Prague, Oklahoma, USA - R.I.P.
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Posted 14 Aug 2009 7:25 am
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Hey Alan, was that you playing--great form!! I love those old singleneck Professionals--real tone monsters!! |
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Marc Jenkins
From: Victoria, British Columbia, Canada
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Posted 14 Aug 2009 8:02 am
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John Billings wrote: |
Just for fun;
Worked just fine from '67 on! |
Am I really tired this morning or are the racks in this picture facing the opposite direction to every photo I've ever seen? |
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John Billings
From: Ohio, USA
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Posted 14 Aug 2009 8:15 am
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Marc! You're awake, and you eyesight is fine! This is a very early rack and barrel guitar. Someone screwed up, and put one of the racks together wrong. You couldn't turn it around the correct way. So,,, instead of throwing it away and making a new rack assembly, they simply turned them all around so it would look "right!" Here's a pic of the assembly;
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Marc Jenkins
From: Victoria, British Columbia, Canada
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Posted 14 Aug 2009 8:15 am Re: Rack And Barrel Question
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Alan Cook wrote: |
You can see it in action here although you cant really hear it until the end of the song the BBC edited the middle solos out because the song was too long.
http://www.youtube.com/watch?v=WhEe4D1QArc
Al |
Nice, Alan! Great sounding Bud. |
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