Roger's Duplex Puzzler

[Roger Jolly]

Hi Mike,
        Just half right?????????????  The reverse was true, excessive down
bearing on two strings of the unison, an easy fast fix, use a stringing
hook on the inside of the string and lever upwards on the hitch pin,
bearing should be about.015" to .020" with the 3 leg dial gauge. To answer
Robs statement about the duplexing not making a difference, please measure
the bearing with a dial gauge or lowell compound gauge, I might have some
suggestions for improvment.
  Before I jump into a flame suit, I was fighting the clock on this one,
and needed stability for a major concert. A better fix is to lower the
tension and lift the string on the hitch pin, retune ect.
Regards Roger


>Hi Roger,
>     I Can't remember the original post, but is this L young enough to
>have accujust hitchpins and termination bars?  Perhaps someone forgot to
>set the downbearing and this string has negative downbearing.  Check
>that all is well with the termination bar, string level etc.
>-Mike Jorgensen
>


>
>Roger Jolly wrote:> Roger Jolly
>> Balwin Yamaha Piano Centres.
>> Saskatoon/Regina.
>> Canada.
>>        Here,s one for you to puzzle over, and I have had it happen many
>> times. One note in the treble of a Baldwin Model L poor harmonic content
>> and low duration of sustain.  D. R. please do not respond. The problem and
>> solution is clearly audible.  Now fix the problem, with out removing the
>> action/////////
>>  Any other takers??????????
>> 
>> Hi Rob,
>>         Not even warm, but I'll build the suspence and see if there are any
>> other takers.
>> Roger
>> 
>> >       OK, I'll bite...
>> >
>> >late damper timing on  the damper next to the treble plate strut?
>> >I've had that one happen.
>> Late timing??????
>> >
>> >Or, overcentering hammer, especially back when the L had an
>> >assymetrical hammer line.
>> What a tease!!!!!!
>> >...not even close, huh?
>> >
>> >Regards,
>> >
>> >
>> >Rob Kiddell,
>> >Registered Piano Technician, PTG
>> >atonal@planet.eon.net
>> >
>> >"Server's poor response
>> >Not quick enough for browser
>> >Time out, Plum Blossom"
>> >
>> >-Netscape haiku error message
>> >
>> >
>
>
Roger Jolly
Balwin Yamaha Piano Centres.
Saskatoon/Regina.
Canada.