Post by thread:[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

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 <spam_OUTjbuczekTakeThisOuTBUCZEK.COM> To: <.....PICLISTKILLspam@spam@MITVMA.MIT.EDU> 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 >

David Covick wrote: > 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. But much easier to buy a pager motor complete with the weight. There is another big market for them outside the pager field too. Many, many, many sites on the 'Net... :)) -- Cheers, Paul B.

At 07:06 05/02/00 -0800, you wrote: > 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. A number of companies are manufacturing vibrators for cell phones and pagers. There are two main types: - cylindrical with the weight at the end of the shaft, - coin or pancake type with an "off center" rotor. Some companies: - CI Kasei (Japan), - Tokyo Parts (Japan), - Shicoh (Japan), - Ja Hwa (Korea), - Samsung Electromecanics (Korea). This being only a sample!