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  1. tedstruk

    Motor doesn't work

    motor ran under 1.2 volts direct, and there is about 1.2 volts at the pinout for the motor. don't know what is wrong, I even found the sawtooth for the longest length of the timer with my oscilloscope... ain't you proud of me? what am I missing?
  2. tedstruk

    JVC Speaker getting power but not producing sound

    If it works its not the speaker .... right?
  3. tedstruk

    Getting from circuits to data.

    what do I need to study?
  4. tedstruk

    Super Simple Circuit questions

    don't leave the battery on all the time. Only turn it on when the lights are wanted, and only use enough power to light them for that amount of time.. use your calculator not your head... then lose the chips and dip. Use dedicated switching times using different caps until you have all the...
  5. tedstruk

    Best way to detect what power source is connected?

    another way is to send all the power input to the same buss and control it all from there. (which is what you appear to want) Frankly I think its a bad idea, power busses always wind up melted unless they are loaded with breakers. Honest. don't fire the lot together without relays and...
  6. tedstruk

    Check My Bass Guitar Schematic?

    Ok it didn't do what I wanted, but the tone was incredible! I used some foil caps R272k and R738k I think... I wrote it down but my computer crashed and I lost the file I have a rule of thumb, if it is good and you want it to do something, add something rather than change it all. I will put...
  7. tedstruk

    Best way to detect what power source is connected?

    multi-stack gate. you might build a switched voltage detector, that fires relays depending on the power plant. start at the high input, if its there, shut off the others. If there are 2 inputs, fire a 2nd control circuit for the 2 circuits, and then if there are 3 inputs, relay on to the 3rd...
  8. tedstruk

    What component is this?

    Thats a ROHS. name means its a time trial and component thats designed to do its job correctly and with a certain amount of stability and proper functioning. most ROHS are specially designed to meet ROHS specs. like a ROHS designed for a heavy wire system will be designed for that enviroment...
  9. tedstruk

    How to connect op amps in parallel

    I thought all op amps were connected in parallel...
  10. tedstruk

    I have a question about a fan I built using a dc motor.

    nah if you plug that into the wall it will fry.
  11. tedstruk

    Check My Bass Guitar Schematic?

    I think this will work, but I wanted your ohpinyun...
  12. tedstruk

    Motor doesn't work

    Not to ruin the converse, but I have a question. I bought a greenhouse watering system that is solar charged and times at multiple intervals from 1min every 3 hrs to 30 min every 3 hrs. Timer plays for 3hrs. The motor isn't running that pumps the water. I opened the case, and found an...
  13. tedstruk

    Identify this component

    The dude has discovered a radio set.... my famous signature below says...
  14. tedstruk

    SAFE Regulated Power Supply

    first year electronics lesson 1. There is no such thing as safe electricity.
  15. tedstruk

    Guitar Dilemna

    I bought one of those DIY bass guitar kits off the auction site. It came with instructions on how to wire it, and when i did, I was not happy with the response of the controls, so I rewired it like a download sheet I got off of one of the guitar pickup manufacturers. It worked better, but the...
  16. tedstruk

    Merry Christmas

    There once was a fat santa clause who couldn't get his Harley started. So like all great santas, he called his replacement. "It just won't start, he told his replacement" and the replacement said..."did you try and push start it?" he replied no, and jumped on his machine coasting down the...
  17. tedstruk

    Solid State.

    when I was a kid, solid state was all the rage. The truth is that by building circuits that only do what they are supposed to, they discovered all the hacks that, well... hackers, had been doing to make systems function only one way. When they put a solid state device in a consumer product...
  18. tedstruk

    light sensor chicken door

    Try this... dedicate your system. Power circuit here... switching circuit here... controlling circuit here.... might help... it looks like you are trying to make everything go all at once... that is only done in solid state electronics, and that usually means bypassing anything dedicated(power...
  19. tedstruk

    vocal changing circuit

    I am a really bad singer and I need some electronics to make me OK. I would like to make a simple vocal doubling circuit, on one switch, and a depth reverb on the another switch so I can use one or both at the same time. do you guys have a couple schematics of these circuits, that I could look...
  20. tedstruk

    Low power distance detection

    PS... they have a system for that, that uses echo off of obstacles to find the most direct line of communications. Like I said, every location/condition is different. Even weather can effect radio waves. Across open water, they say it is as simple as line of sight...
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