Show Summary Details

Page of

Printed from Grove Music Online. Grove is a registered trademark. Under the terms of the licence agreement, an individual user may print out a single article for personal use (for details see Privacy Policy).

date: 13 November 2019

Radio Organ of a Trillion Toneslocked

  • Hugh Davies


Photoelectric keyboard instrument resembling an electronic organ. It was developed by the Italian-born electrical engineer Arnold Lesti (1906–97) about 1930, probably in Hollywood, California. The sound was generated by means of revolving photoelectric tone-wheels interrupting a light beam. This principle was later expanded in the Polytone (1934...

You do not currently have access to this article


Please login to access the full content.


Please subscribe to access the full content.