Mechanical Music Digest  Gallery
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
MMD > Gallery > Tech > PPCo1

PPCo Speed Control
PPCo Vacuum Pump Speed Controller Diagram
by John A. Tuttle (030818 MMDigest)

As many of you know, Player Piano Co. has been producing a vacuum pump kit for player pianos for many years.  In the early years of production, PPCo used American-made parts.  However, back around 1997, RCA stopped making the diac and triac used in the controller.  Subsequently, the parts came from Taiwan, Hong Kong and Mexico, and the failure rate increased dramatically.

For those who have systems that were made after 1997 that have stopped working, I have finally located the schematic for the controller.  I've sent the schematic to MMD and hopefully it will be put into the Technical Section at the MMD web site.  Suitable replacement parts are available from Radio Shack.

I have also stored the schematic at Player-Care.  See:

John A. Tuttle
Brick, NJ, USA
18 Aug 2003 08:17:30 -0400

PPCo_cont653b.gif (6 kb)

19 Auguest 2003

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 1995-2018 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

. .