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
MMD > Archives > April 1999 > 1999.04.06 > 06Prev  Next

Electric Up-Down Accumulator for Coin Piano
By Peter Noeth

In response to Kelly Goodman's search for a 1-20 or 1-30 stepper relay,
these are the kind of things used in pinball machines of the 50's and
60's, before they went electronic.  I would suggest checking the yellow
pages for pinball repair places to see what they may have.

These devices, as mentioned, can use either two pick magnets, one to
advance and one to retard, or some will use only one magnet to advance,
and when it reaches the maximum step count, will reset automatically.

The advance magnet could be wired to a push button switch, or a
microswitch that activates on the passage of a coin entering the coin
chute and the retard magnet could be connected to a vacuum switch
connected to the end of song hole.  Of course some sort of interlock
would be needed during rewind so the retard magnet would not try to
count down on re-roll.


Peter Noeth

(Message sent Tue 6 Apr 1999, 17:42:44 GMT, from time zone GMT-0700.)

Key Words in Subject:  Accumulator, Coin, Electric, Piano, Up-Down

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

. .