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Recent content by daver01a

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    ups\inverter for pc and home equipment

    Here is a tried and true Home UPS Approach. We used it for seven years on a Web Hosting Start-up. We ran 4 servers 24-7 for seven years. .. Simple:: .. We used two Heavy Duty Deep Cycle Batteries (the kind they use in Large Diesel Tractor Trailer rucks). .. We used cheap DC/AC Inverters (Harbor...
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    Looking for Imputs/Ideas for AC Drive Motor Control.

    Looking for ideas/brainstorming. I have TDA1085CG AC Motor Control I.C.s.. Originally intended for washing Machine (the laundry Type). Looking to Control an AC Ducted Fan being powered by an Inverter. A simple TRIAC won't do - I also have a requirement for Remote Control of Motor Speed...
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    [MOVED]LM3914 Audio Spectrum Analyzer Project

    elabguy... I am interested in your Spectrum Display (LED level meter) Kits... Do you have any left? How much? .. I think these are perfect birthday gifts for a few friends.. .. Dave dmason (@) phoenixcomputerlabs (.) com
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    obstaclae avoidance robotic car

    Really cool project... But in a vehicle you multiple categories of "Objects to avoiid: Two are a) Moving and b)stationery. Then you have a1) Moving With You a2) Moving away from you a3) moving around you and possibly interfering with your path a4) Moving around you but not possibly interfering...
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    Mobile Robot Localization and navigation using ultrasonic

    Try reading: "Build Your Own Self Programming Robot" By David Heiserman...His robot (Named Rodney) actually builds and updates its' own map based upon what it encounters. This robot maps out an area and then when it transverses the area from any location to another will automatically avoid and...
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    automatic solar tracking system

    Fantacy, Don't know about giving hints... But I can point you to a few places::: ... Here are a few links to some solar trackers. See if they can help you get organized and get your project done. … 1st: A web Page about solar trackers and with a few good examples: .. Solar Tracker - Solar …...
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    old valves (tubes) that i no longer want

    Okay, I'm interested.. .. How many do you have? Do you have an inventory list? How much is shipping to : Phoenix, AZ 85015 USA?? .. eMail me: dmason@phoenixcomputerlabs.com (Note: Yes I am aware of the possible SPAM issues with posting my eMail here. But I also want to warn SPAMERs that our...
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    Audio output impedance problem

    Sorry,, I read through all the posts - and probably missed a few and answered old posts.. .. my bad
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    What actually spoils a HARD DRIVE of a PC,CD-DRIVE.

    I have found that the number one cause of Hard Drive Failures are Disk errors caused by power drops... .. Did you know that a surge suppressor will only protect your computer from 20% of the power related problems? .. The power grid may spike to 200V or 600V only once per 2-hours, but power...
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    Pioneer VSX-D557 service manual

    Re: pioneer vsxd557 manual hotwaterwizard... Still have the Pioneer Manuals? I'm interested... eMail me... Dave
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    Audio output impedance problem

    You can buy 600:8 and 600:16CT Transformers.. .. I believe Allied Electronics : Allied Electronics .. or Mouser Electronics : Mouser Electronics- Distributeur de composants électroniques .. Dave
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    Why are there 4 unused wires in the network LAN cable ?

    Re: network cables..... In the 10/100 Ethernet Wiring Standards Guide - those pairs are reserved for PoE use. .. Dave
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    Looking for good parts supplier with on-line ordering

    Re: Parts House Have you tried Mouser Electronics : Mouser Electronics- Distributeur de composants électroniques How about Digi-Key: Electronic Components Distributor | DigiKey Corp. | US Home Page ... These are both invaluable resources. .. Hope this helps.. .. Dave
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    I need photocells Manuals

    Are you talking about Photcell sensors? .. Or are you talking about photovaic Solar Cells? ... Please explain further and clarify.. I will try and assist you.. .. Dave
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    How to fix shadows on Samsung SyncMaster 753DFX monitor?

    Re: My monitor makes shadows You have bad caps in the video Matrix Control Board.. Dave

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