Some of the radio shack beepers have a built in pulser to make it go beep, beep, beep. You just connect the power to a different pin to make it pulse.
Regards. Max. K 4 O D S. Email: [email protected] Transistor site http://www.funwithtransistors.net Vacuum tube site: http://www.funwithtubes.net Music site: http://www.maxsmusicplace.com To subscribe to the fun with tubes group send an email to, [email protected] ----- Original Message ----- From: "Bob Kennedy" <[email protected]> To: <[email protected]> Sent: Wednesday, February 11, 2009 7:35 PM Subject: Re: [BlindHandyMan] back up sounds > As Tom said, Radio Shack should be able to provide you what you need. I > take probe testers for 12 volt DC and cut the ground line. In the line I > take a kit box and solder together a 3 to 28 volt buzzer. One I bought > actually beeped as power was applied. It would work great. If you know > where to tap for the reverse current, you could epoxy the beeper to the > bottom of the truck. > ----- Original Message ----- > From: David Engebretson Jr. > To: [email protected] > Sent: Wednesday, February 11, 2009 6:50 PM > Subject: [BlindHandyMan] back up sounds > > > I have a 2 year old who really wants to add back up noises to his remote > controlled dump truck. > > I was thinking, as an electronics engineer, that I could tap into the > power > from the batteries and add some kind of circuit to make a little beep > beep > while in reverse. Then I thought there is probably already such a device > on > the market for real cars.although it probably runs off of 12 volts for a > real car. This has 4 C cells in it. > > Anybody have any ideas for us as to how to make it go beep when it is in > reverse? > > Thanks, > > David > > [Non-text portions of this message have been removed] > > > > > [Non-text portions of this message have been removed] > > > > ------------------------------------ > > Send any questions regarding list management to: > [email protected] > To listen to the show archives go to link > http://www.acbradio.org/pweb/index.php?module=pagemaster&PAGE_user_op=view_page&PAGE_id=33&MMN_position=47:29 > Or > ftp://ftp.acbradio.org/acbradio-archives/handyman/ > > The Pod Cast address for the Blind Handy Man Show is. > http://www.acbradio.org/news/xml/podcast.php?pgm=saturday > > Visit The Blind Handy Man Files Page To Review Contributions From Various > List Members At The Following address: > http://www.jaws-users.com/JAWS/handyman/ > > Visit the archives page at the following address > http://www.mail-archive.com/[email protected]/ > > If you would like to join the JAWS Users List, then visit the following > address for more information: > http://www.jaws-users.com/ > For a complete list of email commands pertaining to the Blind Handy Man > list just send a blank message to: > [email protected]! Groups Links > > > > >
