Sony M-909 Auto Reverse Microcassette Recorder, 1990's
Up until the the time the micro digital audio recorders came about, the Sony M-909 was the world's smallest tape recorder. It was used by private investigators and law enforcement for a number of different types of operations. The M-909 measures a mere 2 1/2 inches X 2 inches X 1/2 inch. It features included voice activation and auto reverse. The Spy Exchange And Security Center sold hundreds of these recorders in the recorder's hay-day in the 1980's and early 1990's.
The M-909 sold for about $495.00.

From The Ralph D. Thomas PI Vintage Collection
THOMAS INVESTIGATIE PUBLICATIONS, INC.
NATIONAL ASSOCIATION OF INVESTIGATIVE SPECIALISTS, INC.
SPY EXCHANGE AND SECURITY CENTER
P O Box 82148, Austin, Texas 78708
Showroom: 9513 Burnet Road, Austin, Texas 78758
Phone 512.719.3595 Fax 512.719.3594
Email: RThomas007@aol.com

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Copyright: 2006, Thomas Investigative Publications, Inc. All rights reserved.
Thomas Investigative Publications, Trademark, 1981.
National Association Of Investigative Specialists, Inc, Trademark, 1986.
Spy Exchange, Trademark, 1999