Compensators

Instruments, mechanical issues, copedents, techniques, etc.

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Roger Snively
Posts: 66
Joined: 8 Mar 2001 1:01 am
Location: Washington C.H.,Ohio USA

Compensators

Post by Roger Snively »

I have been having trouble with the strings returning to original tuning after raising/lowering. So I am considering putting compensators on. Don't have a problem with the C6th. I have a D10 Emmons 8/8. Any suggestions? Thanks Roger
C Dixon
Posts: 7061
Joined: 4 Aug 1998 11:00 pm
Location: Duluth, GA USA
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Post by C Dixon »

I am assuming you are talking about an Emmons' LeGrande; since I am not aware of any compensators on a P/P. Also, I am suprised you are having no problem on E9th. Most compensators I know of began with tryng to stop "hysterisis" on string 4 when the E's are raised then lowered coming back slightly sharp.

But I will comment on C6. The biggest offenders on the standard setup is string 3, 9 and 10. Since these strings are raised and lowered in the standard setup, I would suggest you put compensators on them.

Again I assume. You are familiar with how they are installed and how to adjust them. In the event you are not, the following may help you:

1. order the basic "compensator" kit plus 3 compensator pulls, from Emmons.

2. Install the fixed crossbar in crossbar slot #9. (Note: if 9 is in use, install it in slot #10). Screw the return screw in so the crossbar cannot pivot. Install three bellcranks on this rod aligned with strings 3, 9 and 10 on C6.

3. Install the 3 pull rods in the bottom lower hole on strings 3, 9 and 10. Attach the bent end of the pull rod into the appropriate bellcrank and attach the "E" ring.

4. Install the rubber grommet on the rod outside the changer.

5. Install the nylon tuner so it does NOT touch the changer finger.

To adjust:

1. Tune the open strings to your liking.

2. Tune the raises as always.

3. Tune the lowers as always.

Now:

1. Engage the raise, release it and engage the lower and release it. The string will be sharp.

2. Without touching any string, pedal or knee lever (IMPORTANT), adjust the appropriate "compensator" nylon tuner slowly and just enough, to flatten the "sharped" return of the lower until it comes back in tune when raised then lowered and returns.

I cannot stress the importance of following this sequence. If you don't, you can chase your tail all night.

May Jesus bless you in your quests,

carl
Roger Snively
Posts: 66
Joined: 8 Mar 2001 1:01 am
Location: Washington C.H.,Ohio USA

Post by Roger Snively »

Mr.Dixon, Thanks for your help. I do have minor problems on c6th. but it is more prominent on E9. My brother-in-law (Joe Adams) has compensators on his Zum, so I'm also going to enlist his help. But I really appreciate your in-put. Thanks again.
C Dixon
Posts: 7061
Joined: 4 Aug 1998 11:00 pm
Location: Duluth, GA USA
Contact:

Post by C Dixon »

Roger I am dummer than a door. I reread your post and I totally missunderstood you. So sorry.

Just apply what I said to string 4 if that is the one; or any others. The compensators all work the same.

carl

A Better Way
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