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  1. roughshawd

    Altering sensors of similar sort...

    I have two(2) TX DC 3v 2xAA sensors made by acurite that send my greenhouse data back to my wireless control panel which displays the data.. One is a Temperature Sender.. The other is a Temperature and Humidity sensor.. The sun cooked the Temperature only sensor and I bought the wrong one, and...
  2. roughshawd

    Op-Amp selection for inverting source signal - Bench PSU build

    The key word here is shunt. Try different shunts to maintain the signal in a capacitance, then drain the circuit with triacs... Heh heh .. don't try this at work!!!
  3. roughshawd

    Bench psu build

    One other debacle on these PWR supplies... I would assume the ground one uses with each voltage would probably effect the actual signal quite a bit. So assuming I use a case ground( which is what I used to do for power applications only). The ground from a 12v src might effect the 3v signal...
  4. roughshawd

    Bench psu build

    What is the latching voltage of a PC momentary power on switch?
  5. roughshawd

    Bench psu build

    Because this is a psu for a more modern approach to power management, it may have used latching technologies and tactal contact switches as intermittent contact, for the power on switch. I would like a good primer on this tech, without all the shift register hoohaw so I don't burn it up with a...
  6. roughshawd

    Bench psu build

    Wanted you to know I learned something... The 4 pin molex is to power a Dc-Dc converter for the low power Pentium 4 cpus which only use a volt or less. I always thought it was a reference line for old 486..duh wrong! It's an old thing, not an an ancient thing...
  7. roughshawd

    30 yr old blower quit.

    Webmaster... 10 year old thread,... Wooo hooo!
  8. roughshawd

    30 yr old blower quit.

    Do the wires have nylon zip ties holding them in? Notorious mistake I just rebuilt an old oscillating fan with two busted wires that had been pinched my the tight zip ties.... Check the wires where they are pinched... For breaks .... Opens. It worked for 30 years, there is a reason it quit
  9. roughshawd

    Physics Related to Electricity Questions

    I would have to add that physical equation is primarily a state of the art where a magnet wasn't even a magnet until the 60's and Dymium magnets are considered power sources... [edited by moderator]
  10. roughshawd

    Bench psu build

  11. roughshawd

    Bench psu build

    Planning on making a bench power module from KDM 6275h micro ATX 275w P4-12v the sticker says green PS-on...output remote Turns the supply on. Then it says orange PW-OK output P.G. What's the orange ? Power OK...? Output power ground?
  12. roughshawd

    Validator breakout

    I got this cheap, and need to know something about it. From what I glean on ebay, it has something to do with Dish and Hoppers. If anybody knows what it is for, or has the specs for it I would be truly or greatful... Validator breakout board rev. A
  13. roughshawd

    Beer fridge... Redux

    Can't find the specs for the breakout, I need the manufacturer documentation on it.
  14. roughshawd

    Beer fridge... Redux

    So, when everything works except the main system, and suggested fixes are to replace entire units or devices, first check the fuses. But, if the main system was tested and was working when other unimportant systems weren't working, maybe the device isn't working properly. I purchased a small...
  15. roughshawd

    Hp power use

    Is a higher horse power motor more demanding for power, than a small horse power motor, or is the application important for a toss up ? Reason is I have a shallow well that had a 1/2 hp motor, but I put a 3/4hp in because I added four gardens that requires irrigation. The new pump is doing...
  16. roughshawd

    WallWart conversion...

    Heres the lesson... mt repair failed... I think the camera requires the battery, and this port is only a charging port !!! So much for the ingenuity of the beginning electronics aficionado... :( spell check ok... next project :) Note to self... please don't waste the electronics genius'...
  17. roughshawd

    WallWart conversion...

    Looking for the right adapter ok...!! :)
  18. roughshawd

    will wallwart blow my machine?

    I want you to understand, all professional electronics guys are not the same. I have been told over and over by electronics masters that switching power supplies are better than linear ones. I do know that if you don't supply enough power, that it will harm your device. The truth is in the...
  19. roughshawd

    WallWart conversion...

    Taito 1N5820 is 20v 3a, Please explain these numbers >>> DO201AD
  20. roughshawd

    WallWart conversion...

    I am considering this diode for circuit protection. It is fairly large, but I think my power supply and device requirements might cook and eat milliamp diodes. Maybe I am barking up the wrong tree, and I should wrap some ferrite or air in a secondary transformer coil... they have wire of the...
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