At 02:09 PM 8/20/97 -0700, you wrote:
>what is the cheapest peizo-electric device/buzzer available in
>the market, and how do i interface it ?
> i dont care what frequency(ies) it is, i just need to
>make my circuit hoot.
>
>--ravindra/
>
>

Murata's PKM22EPP-4001 goes for $0.72 ea in 100's at Future Active Inc.
Not loud (75 dB @ 10CM with 3VAC drive @ 4kHz).  Can be driven with 30VAC
for another 20dB.
---------------------------------------------------------------------------
Lynn Richardson - Design Eng.|WA0ZNL            |Progress Instruments, Inc.
DC - 1GHz, RX, TX 100W, PLL  |WA0ZNL.AMPR.ORG   |807 NW Commerce Drive
ASM 6805, 8051, Z8, PIC      |44.46.176.3       |Lee's Summit, MO 64086
C                            |lrich@proginst.com|P(816)524-4442 F 246-4556