"SIDE TONE DELAY" WITH ATTACHED COVER MEMORANDUM

STANDARD FORM NO. SS Office Memorandum � UNITED STATES GOVERNMENT TO Via � FROM : SUBJECT: "Side Tone Delay" DATE: 16 November 1951 146.1. Since - , Chief of the was in- strumental in setting up the demnstration for the "side tone delay" instrument and since he has been in continuous consultation with the writer and his associates in this matter, the writer took the liberty /9 of showing the attached memorandum and related papers...