Comments on: Simple Sound Alarm Generator using CD4011 http://www.elecfree.com/electronic/simple-sound-alarm-generator-using-cd4011/ Sun, 21 Mar 2010 07:28:36 +0000 http://wordpress.org/?v=2.6.5 By: Easy Audio Alarm Generator by IC 4011 | ???? ??????? ?????????????? http://www.elecfree.com/electronic/simple-sound-alarm-generator-using-cd4011/#comment-1379 Easy Audio Alarm Generator by IC 4011 | ???? ??????? ?????????????? Sun, 28 Dec 2008 06:18:13 +0000 http://www.elecfree.com/electronic/?p=3555#comment-1379 [...] ?????????? Easy Audio Alarm Generator ???????????????????????????? ?????????? digital number CD4011 or MC14011 or TC14011,it be nand gate logic. ????????????????????????????????????? 10watt ??????????? 8ohm ?????? power supply voltage 12V. ??????? ??????????????? ????????????????? ??????????????????? ????????? on-off ???????????? SW1 ???? Alarm Actuate Switch ??????????????? ?????????????????? ??????? [...] [...] ?????????? Easy Audio Alarm Generator ???????????????????????????? ?????????? digital number CD4011 or MC14011 or TC14011,it be nand gate logic. ????????????????????????????????????? 10watt ??????????? 8ohm ?????? power supply voltage 12V. ??????? ??????????????? ????????????????? ??????????????????? ????????? on-off ???????????? SW1 ???? Alarm Actuate Switch ??????????????? ?????????????????? ??????? [...]

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