New take on Universal Steel guitar by Excel...........

Instruments, mechanical issues, copedents, techniques, etc.

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C Dixon
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Post by C Dixon »

Thank you Don for posting that. I have some questions:

1. Why do you not also raise the 10th string to A with pedal #2?

2. Because of the heavy added pulls using the "LOK" lever, is the lever very stiff, OR did Mitsuo make the travel considerably longer to offset all these extra pulls?

Finally, have you ever considered adding a tone and 1/2 raise to the 10th string on RKR when in the NON lock mode? I did it 10 yrs ago, I find I cannot live with out it now.

Thanks again for posting that Don.

c.
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Al Marcus
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excel-tuningss

Post by Al Marcus »

Don-that is a really well engineered guitar by Excel. But it looks pretty complicated to me.

Larry Bell and Carl Dixon's, E9/B6 tning charts look pretty good for E9/B6 playing. Carl's with the separate cross bar is a good idea so he can lock it when he want or STill have the option of universal with the kneel lever for the Eb's and the C# second string. It has all been worked out so you dont need a D10. However for me I have been playing many tunings in my life, but spent most of my time with E6, as an old guitar player too, it is easier for me.

Charlie - thanks for posting my website and tunings. They are not set in stone, but good for ideas as you say.

Here is the latest E9/E6 universal that I have been fooling around with for the last 3 or 4 years. I dont have a program for charts so bear with me. The explantation on the Chart that Charlie has posted is good for Pedal and knee locations. Hee it is open just like an extended E9, when you throw the lock, bar postions are the same whether in E9 or E6, so you dont have to have a long learning curve.

It is E6 open top down-
[tab/]
F#-D#-G#-E-C#-B-G#-E-C#-B-A-E..E6.

I'll try again, the 5th string goes to B..the 6th str goes to G#...the 7th string goes to F#...the 9th str goes to D. A perfect 12 string E9 with the lock
Lock ............B..G#.F#.....D...........E9....To be continued ..Good night...al [tab]
Michigan (MSGC)Christmas Dinner and Jam on my 80th Birthday.

My Email.. almarcus@cmedic.net
My Website..... www.cmedic.net/~almarcus
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Don E. Curtis
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Post by Don E. Curtis »

Carl, sorry, that's a typo, seems like no matter how much I proofread there's always a boo-boo that slips through...
I do raise the 10th string along with 3&6 with the B Pedal. This is crucial, as is the F Lever on string 11 too!
And that RKR is rather stiff so I wouldn't want another change on it.
As per the LOK...I know that some of the previous ones were a little hard to push, then he lengthend the throw and that helped. Now on mine, which is on the Changer side, and the Simulator which Michael Vallandingham purchased is easy as butter and it's pulling 10 strings and activating the two See-saw Levers! I can switch mine effortlessly anytime, just don't push a See-Saw Lever while you're doing it!
I can now once again play "Streets Of Laredo", great fun!
Don E.
C Dixon
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Post by C Dixon »

Thanks Don.
just don't push a See-Saw Lever while you're doing it!
Yes, I can equate with that. On my electronic switchovers, THAT is one thing that has plagued me from day one. IE: What happens IF you engage a knee lever AND you try to activate the switchover of that knee lever?

I have studied this problem for a very long time. I could cure it electronically, but it would add too much electonics. So I have settled on doing it by a blocking device at EACH switchover, so as to prevent it from happening. I do this by individually "spring loading" each activator, whereby it is prvented from moving the switchover to the opposite position.

c.
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Don E. Curtis
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Dave Munson

Post by Don E. Curtis »

You know last year we got a universal with the LOK and two of the see-saw levers that one of my students, Dave Munson bought. It doesn't seem to have the inverted bell cranks but Dave did just recently install a pedulum lever...maybe he'll post some pix too. I'll ask him to comment as he's quite a machinint/fabricator who owns "Fine Art Light" here in St. Louis and does custom lighting for famous people like Paul Simon and even for the Congress of the U.S. as the original paintin of George Washington has Dave's lights on it...
Don E.
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David Munson
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My new excel modified for pendulum lever.

Post by David Munson »

Last year I purchased the ultimate 12 string universal that was at the 2007 convention.
I believe it was the 1st one with the see saw option from Excel and was the guitar that inspired Don for his new purchase.

Image

Now comes the rub... Don ordered his new one and is better than mine because he has two see saws and a pendulum lever. Really hacked me off.


Here is my modification to get the pendulum lever to work. I had to move the hex shaft up in order to get the bell cranks inverted. A little machining and now mine is pretty close to Don's hot number.

Image

( I don't know if Don will agree but I think I was the one that convinced him to get rid of his double neck ) right Don?

You see when I first started playing I could not understand why people would play a double neck when a Universal could do the same sounds. Maybe Don just got tired of trying make excuses and realized the student was right.............

Don taught me more in the first two lessons than 20 years with everyone else....

Don when are you going to release your new 12 UNI DVD?
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Jim Peters
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Post by Jim Peters »

It is amazing that anybody can keep it all straight in their heads! Thanks Don, Dave, Carl et al for raising the "bar"! JP
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Mike Vallandigham
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Post by Mike Vallandigham »

Well, I've had the new Excel Superb D10 simulator for a few days and I got two words: BAD rear!

This guitar tunes easy, plays easy, pulls smooth on every pedal and knee lever.
I love the action of it, it pulls very evenly over the length of the pull, stops solid and true. It's hard to describe the feel of the pedals on this axe. I have 2 other steels, a Mullen RP and a '75 PP.
The Mullen plays perfectly, but I always thought the pedals were too soft, ie. they were a little lacking in feel under my large heavy feet. The PP has a great pedal feel, stiffer than the Mullen, but it gave you a real idea of where you were in the pull, and felt as is it required the same force to be applied throughout the course of the pull.

This Excel is right in between those two guitars, the pedals are firmer, which I prefer, yet still so buttery smooth and communicative.

I realize all this stuff it totally suject to personal taste, and that these traits can be changed by setting up the guitar for ones personal liking. This guit rocks, right out of the box.

Here are some VERY cool features in case anyone's interested:

1) It has anti-detuning mechanism on it, for pedals A, b and C. The counter action is applied by actually pivoting the tuning key head. It pivots right past the nut, pivoting downward to tighten the strings to counteract cabinet drop. I've tested this with a tuner, and the needle stays pegged straight up as you press any pedal, A,B or C. My other guitars have noticable/audible cabinet drop. Vey cool, you can watch it move as you're playing.

2) To achieve a lower, the changer finger actually slides forward, to raise it still rotates like a regular guit.

3) Fretboard looks to be silk screened aluminun, very classy!

4) then neck is covered in matching mica, which I like, because you can always see the sratched from dust/wiping on the front wall of aluminum necks, and it's hard to polish these out without taking the neck off. Mica that baby, problem solved.

Don or Carl!! are these wooden necks under the mica? or are they aluminum. it's hard to tell.

4) the way the pedal board attached to the front legs is totally cool. the rubber feet are applied to the end of a threaded rod that threads into the bottom of the leg. you simply place the slots in the pedal board into place over the threaded rod and tighten down the rubber foot till it secures the pedak rack in place. it's it's like 4 less pars per side, and the rubber dosen't mung up your legs like metal pedal board attachment schemes.

5) The degree of adjustability of the knee levers is incredible, i'll just say that.

6) the See-Saw knee levers are ingeniously engineered and work great, I'll refrain from trying to explain how they work here.

7) the 25.5 inch scale REALLY tightens up the lows, cured the farting out problem on ALL my amps. the bass strings sound like the frikin liberty bell.


To top it off, this thing it light and small as heck. shipping weight in the case and in a box was 54 lbs.

BAD rear AXE!
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Post by C Dixon »

Don or Carl!! are these wooden necks under the mica? or are they aluminum. it's hard to tell.
Mike,

On mine they are aluminum necks. However, I would not speculate on others because Mitsuo is making changes all the time.

1) It has anti-detuning mechanism on it, for pedals A, b and C. The counter action is applied by actually pivoting the tuning key head. It pivots right past the nut, pivoting downward to tighten the strings to counteract cabinet drop. I've tested this with a tuner, and the needle stays pegged straight up as you press any pedal, A,B or C. My other guitars have noticable/audible cabinet drop. Vey cool, you can watch it move as you're playing.
This is indeed correct. To see a picture of it. Look at the 2 following photos:


Image

Notice the keyless tuners attached to an aluminum plate. This entire plate and tuners pivots on a pin, that is located just below and just to the left of the nut roller axle.

So when you tune the guitar's open strings, this pivoting plate CAN (if acted upon) counteract for "cabinet drop". Next picture shows HOW it is done:



Image

Notice the 3 brass adjusters just below the first 3 pedal rods. They are in turn connected to a rod, that moves a bell crank located JUST below pedal rod #4. This in turn moves a very small bellcrank which is rodded all the way (and under the crossrods) to a high-in-the air crossrod at the left end plate (as viewed upside down)

This in turn is rodded to another bellcrank that is the connected to the pivoting plate on the UNDER side of the guitar. If you zoom this picture by copying it to your picture file, you can see all of this pretty clearly.

So when you engage say the A pedal, and the 4th string drops in pitch, you can adjust for that drop by turning the brass adjuster connected to the A pedal. Once adjusted, they never need to be adjusted again.

My hat is off to Mitsuo, for such a clever design; to counteract what MOST PSG players complain about. For those that are not bothered by "cabinet drop", simply back off on the brass adjusters and live with the drop. :)


To achieve a lower, the changer finger actually slides forward, to raise it still rotates like a regular guit.
Again, Mike is correct. Notice the picture below. It is hard to believe, but NOTHING moves to the right of this changer (on lowers) that would allow a "split" screw to be installed to the right of the changer.

But Mitsuo is very clever. So he installed the screws to the Left of the changer! If you look closely, you can see them. One for each string. Neat huh?




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richard burton
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Post by richard burton »

Surely, if the cabinet drop is cured by a moving plate (which all the strings are anchored to), it will raise all the strings the same distance, regardless of the fact that some strings exhibit more drop than others.

Wouldn't that mean that some strings end up sharper than they they should be, when the compensator is activated ?
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Post by C Dixon »

GOOD question Richard. You are not the only one to come to that conclusion. I thought about this from the first.

I am, when I can afford to buy the world's greatest electronic tuner, going to put that to rest (in my mind at least) one way or the other. I have heard oppossing arguments either way.

IF it turns out that it "over" corrects or "under corrects" on given strings, I won't use it.

But my gut feeling is, it would be stupid for a renowned builder of one of the world's finest PSG's, to end up with that reality.

Nevertheless, a fact is a fact. And again, if what I thought about and what you thought about turns out to be true, then it is for naught, in my book.

You have an above average analytical mind dear person. May Jesus nurture this innate gift always,

c.
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Earnest Bovine
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Post by Earnest Bovine »

richard burton wrote:Surely, if the cabinet drop is cured by a moving plate (which all the strings are anchored to), it will raise all the strings the same distance, regardless of the fact that some strings exhibit more drop than others.

Wouldn't that mean that some strings end up sharper than they they should be, when the compensator is activated ?
Maybe, but when it "raise all the strings the same distance", it will tend to cause more pitch change in those strings that exhibited more drop. So I expect that it would work well.
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Post by C Dixon »

Yes Ernest,

That is one of the theories that seems very plasible to me. I am going to find out. "Inquiring minds want to know!"

c.
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Post by richard burton »

Nice one, Earnest :D
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Post by Mike Vallandigham »

I see it simply, the cabinet drop drops all strings uniformly (it has to it's the superstructure)
then this plate raises all the strings uniformly.

Any differences are a result of the string gauge and it's placement across the top if the instrument, thus these small differences are corrected individually by the same factors that imparted them in the first place.
I think i should stop there, as I think that explains it.

It's ingeniously simple.
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Post by Mike Vallandigham »

Carl or Don,
My guitar has a few changer fingers that look to be in a pre-lowered position. here's a pic. Strings 4 and 11. This doesn't seem to effect it's playing.

It doesn't really change when the lok lever in engaged.

Is this normal?
Image
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Post by C Dixon »

No.

One of the causes of this is: a pedal or knee lever "pull" that does not have enough travel.

Another cause is insufficient "return spring" pressure.

I would however not start here. Rather, slowly back out any "LOWER" nylon tuner on that string. If the condition comes back to normal, then it is more than likely a "travel" problem.

On the other hand, if the condition does not come back to normal, then it may be insufficient spring pressure.

I doubt it is a sticking finger, but it could be. This can be proven by operating the return finger by hand (with all Lower tuners backed off) and see if the changer finger comes back normal each time.

If not, a little light lubricant on top of the changer finger; giving sufficient time to soak in may free it up.

Hope this helps dear person,

c.
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Post by Mike Vallandigham »

Hi Carl,
I'll try your suggestions.
I thought about the return spring, and also that it may be bound up on one of the pulls. I'll check it out this evening.
Thanks for the help!
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Post by Mike Vallandigham »

OK, I'm stumped. What keeps the finger from lowering when in the neutral position?

That's my problem, the tension of the string when tuned to pitch, with all pulls backed off, pulls the finger into the lowered position.

What counteracts the string pull? I need to tighten that up.

Thanks.

So to put it another way, it's too easy for the string tension to pull the finget to a lowered position.
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Post by C Dixon »

Hmmmmmm

Now I am stumped. Unless there is not enough tension on the "return" spring.

Try this:

Push the lowering finger IN the direction that the spring pulls. See if you can push the lower finger back into position. If you can, there is apparently not enough spring tension.

If not, then there may be an obstruction that is preventing whatever tension the spring has to pull it back into normal position.

Assuming you can not push the lower finger any further back, then take a flashlight and shine it in various places, to see a possible obstruction.

Also, check the other lower fingers and find out where they "stop". Lower fingers #4 and #11 SHOULD be pulled up against that SAME stop.

I hope this helps dear friend,

c.
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Post by Mike Vallandigham »

As I think about this more...

I can push the finger back into the unlowered position. If you losen the string all the way, the finger returns to the correct position. The fingers seem to have no obstruction.

The culprit is that the string tension pulls the finger into the lowered position (not all the way, there is still some lower travel left) when you tune it up to pitch.

something is not keeping the finger in the unlowered position.

Does anyone have a diagram or sketch of this changer?

Whatever blocks the finger from lowering against the string tension does not keep the finger from doing so.

Man, tis is tough, I'm gonna try to sketch the mechanism on this guitar so see if I can shed some light.


All the while, the guitar plays beautifully... it's mostly cosmetic, but it bugs me that I can't figure it out. PArt of the fun of a new guitar.


Carl, I appreciate your help. thanks. :mrgreen:
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Post by Mike Vallandigham »

Spring 1 in the pic keeps the lower fingers all stopped and aligned (I circled the area)

spring 2 up against the cabinet threads thru the upper(near the string) portion of the finger.

It seems that this is redundant, ie pulling the finger to a lowered position when the string tension would do this also..
Should I loosen this spring on the effected strings?

Of course it's not, it's there for a reason, I'm just not understanding it.

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Post by C Dixon »

Mike,

What I am seeing does NOT make sense with what I saw on the first picture you posted earlier. In that picture as you stated, #4 and #11 changer was in a partially lowered position.

Yet in the picture above, ALL the lower pins (that the springs attach to) are IN line. This does NOT make sense to me.

In other words, IF a changer finger is to the left of the idle position, THEN that lower finger should be OUT of line with the other fingers. Yet they are all in line.

I am going to have to think about this. I will get back to you.

c.
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Post by C Dixon »

Mike,

I have thought about this hard.

I can see only one reason this can be. The Excel changer is one of only two changers (I know) of that uses only two fingers, that is not a push-pull mechanism.

It is a very simple changer that allows all changes to be accomplished by "Pull" rods with NO "push" rods. Mistuo told Bill Stafford that he thought about this concept for over 30 yrs before introducing the "Superb" changer 10 yrs ago.

What makes it unique is the raise finger does NOT pivot on the changer axle as in most all other changers including P/P's. Rather; it pivots on a small pin ON the lower finger which DOES pivot on the changer axle.

So the only thing I can imagine that is resulting in what is happening on your guitar is; #4 and #11 raise fingers are stopping at a DIFFERENT place than ALL of the other fingers. Thus everything appears to be working ok.

The standard stop on an Excel Superb Excel PSG changer, is a horizonal plate that is either extruded into the end plate; OR, an auxilliary plate (on some models) that is screwed to the end plate.

BOTH the raise and the lower fingers should stop at the edge of this plate in their "idle" state. The springs are to insure this. In the last picture you showed, it appears that ALL the lower fingers ARE indeed pulled against this plate.

What I can't see in the picture is IF the raise finger on 4 and 11 is pulled hard against this stop. This is not easy to see. But if you study it for a while, you will see it.

Other than that, I can not see ANY reason for what is happening on your guitar. Since it is not causing a problem, you may wish to forget it and live with it. But it is not right I assure you.

Finally, IF you want it right, please send me the two photos in an email with the last photo untouched. By that I mean, no red pin marks. I will in turn send them to Mitsuo and describe what is happening and let him give us some suggestions.

Then I will get back to you dear person.

c.
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Don E. Curtis
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Post by Don E. Curtis »

Gee, I don't know, I never had good enough hearing to detect much less than 3 or 4 cents...and yes, it seems that all of the guitars I've ever had have had some degree of cabinet drop. Sho~Bud, Dekley, Emmons Original, Marlen Push-Pull, Zumsteel, GFI and Excel.
But, just the like Emmons LeGrande III, if you engauge the anti-detuning device and it adjusts the open "dropping" strings, it does not seem to sharpen the "pedal'd" notes. I checked my Excel and it did drop less than 3 or 4 cents, then I engaged the device until strings 1 & 7 remained stable, checked the Pedal Tuned notes and they were the same. And I have not have to adjust the LOK notes since it came out of the box in tune from Japan to California, then ground freight to St. Louis, picked up in a van and taken back and forth from the Convention to Scotty's, then to a gig and now at my house...still in tune.
As per the See-saw levers being swithed while being held...if it's in B6 and either lever is engaged and you un-lok it once you release the lever it will change over. But, if it is not Lok'd and you attempt to Lok it while holding either lever it will not go from E9 to B6. I have to let them off first.
In the meantime I'll keep on Steelin'!
Don E.
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