Joe, Try: http://www.solarbotics.com/products1.shtml http://www.micromo.com http://www.tokyoparts.co.jp There are many other sources. essentially it is a small 1.3 volt motor with a weight on the shaft that is "off-balance", this causes the low frequency vibration You could make one up quickly with any motor and weight. David ----- Original Message ----- From: Joe Buczek To: Sent: Saturday, February 05, 2000 7:06 AM Subject: [OT] Buzzer device? > Greetings, > Does anyone know what kind of a vibrator mechanism is used in pagers > and cellphones for their "silent ringers"? Sources or suggestions for > making one from scratch would be appreciated. > > Thanks, > --Joe >