Mechanical Music Digest  Archives
You Are Not Logged In Login/Get New Account
Please Log In. Accounts are free!
Logged In users are granted additional features including a more current version of the Archives and a simplified process for submitting articles.
Home Archives Calendar Gallery Store Links Info

End-of-Summer Fundraising Drive In Progress. Please visit out home page to see this and other announcements: https://www.mmdigest.com     Thank you. --Jody

MMD > Archives > February 1999 > 1999.02.23 > 08Prev  Next


Reroll Pneumatic in PPCo. Full Automation Kit
By Larry Norman

Hi all,  To reply to Sam Harris on the PPCo rewind pneumatic,
I just rebuilt a Kurtzman with a Standard player in it for an elderly
lady and, feeling that she would not be able to foot-pump her player,
I installed the electric pump and put in the rewind pneumatic.

What I ran into was that it did not want to go into rewind unless I had
more vacuum, making it play too loud.  However, if I pulled the hose
off the tracker bar to the rewind pneumatic it would go into rewind
just fine.  I came to the conclusion that the orifice of the tracker
bar was too small for the pneumatic to operate.

What I did was sacrifice two playing notes for the rewind and it works
just fine every time.  So try pulling off the neoprene tube to the
rewind pneumatic and if it works fine just sacrifice another note, or
I guess you could make the note hole in the tracker bar a bit bigger.
Musically yours

Larry Norman

 [ That sounds like the bleed in the PPCo valve is too large for the
 [ small flow through the tracker bar.  Was the valve perhaps designed
 [ for a different purpose?   -- Robbie


(Message sent Tue 23 Feb 1999, 21:04:01 GMT, from time zone GMT-0500.)

Key Words in Subject:  Automation, Full, Kit, Pneumatic, PPCo, Reroll

Home    Archives    Calendar    Gallery    Store    Links    Info   


Enter text below to search the MMD Website with Google



CONTACT FORM: Click HERE to write to the editor, or to post a message about Mechanical Musical Instruments to the MMD

Unless otherwise noted, all opinions are those of the individual authors and may not represent those of the editors. Compilation copyright 1995-2019 by Jody Kravitz.

Please read our Republication Policy before copying information from or creating links to this web site.

Click HERE to contact the webmaster regarding problems with the website.

Please support publication of the MMD by donating online

Pay via PayPal

No PayPal account required

                                     
Translate This Page

. .