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Messages - pnoboy

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The Fender Rhodes Electric Piano / Re: Black keys set too high?
« on: August 22, 2015, 07:08:58 AM »
Adding spacers to the balance-rail pins will raise the keys. First, check the key dip of the white keys.  It should be 3/8" as measured at the front of the keys.  The miracle mod can raise the hammers, and thereby decrease key dip.  If the dip looks good, measure how far above the white keys the black keys stick up.  On most pianos, it's about 7/16".   If the white key dip is good and the black keys are sticking up too high, remove a few black keys and see if there are shims under the balance-rail felts.  If so, you can remove some and see if you can get the black-key height where it's supposed to be.  If the white keys don't have the proper dip, that should be fixed first.  That's a separate topic.

The Fender Rhodes Electric Piano / Re: hammers and magnet length
« on: August 18, 2015, 06:18:18 AM »
In the acoustic piano, hammer weight has a profound affect on tone.  You can find lots of info on this topic with some searching.  One reason treble hammers on acoustic pianos are small is to bring their weight done.  Heavy hammers in the treble region cause a loud thunk without much other sound.

There's no true shortcut to finding a problem like this.  The best thing to do is to use an oscilloscope to look at the signal as it goes from stage to stage.  At some point, you'll see a normal signal, and then at the next stage it will be bad.  Then you'll know where to look for the problem.  Also, make sure you have a schematic.

Is your wiring diagram correct?  It appears to show the top end of pickups 73,74, and 75 connected to ground, and the bottom end of pickups 1 and 2 connected to ground.  Should the top end of 73,74, and 75 go to the middle solder post?

The Fender Rhodes Electric Piano / hammers and magnet length
« on: August 16, 2015, 04:50:48 PM »
Hello everyone.  I'm new on this forum, and hope I'm not asking about things that have been already answered.
First, does anyone have any definitive knowledge as to when Rhodes switched to the 1/2 inch magnets?  I've found conflicting information.  For example, I had a 1972 or 1973 Mark I stage piano, and based on its pickups being wired in parallel groups of 6, and also based on the fact that decreasing the pickup-to-time gap to less than 1/16th inch caused detuning, I assume that it had the long magnets.  Nevertheless I ran across information that the shorter magnets were introduced with the mark I.  I believe the pianos with shorter magnets always had pickups wired in parallel groups of 3.  Is this correct?

Second, does anyone know which is lighter, the wood/plastic hammer or the all-plastic hammer?  I have never seen this discussed, but would expect that hammer weight would have an effect on tone.  Other things being equal, a lighter hammer will bounce off the tine more quickly, and this would favor the excitation of more harmonics, creating more of the ping when the hammer hits the time.

Thanks to all for any responses.

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