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  1. C

    Touch Control Circuit

    Hey all, I have a couple touch lamps that have recently stopped functioning. The light turns on when I plug the lamp in but touching produces no effects. I've disassembled the lamp and found the touch control unit to have the following specs: HuaQiang Lighting & Electrical Appliance...
  2. C

    Cheaper Relay

    I really like the price tag of this relay from the site you recommended Steve: http://www.futurlec.com/Relays/SSR10A.shtml But it looks like it's operating voltage is 48VAC to 280VAC. I think it's odd that there's a minimum voltage for these things to operate. Why do they need a minimum...
  3. C

    Synchronized Water Fountains

    Just wanted to thank everyone for their help. I managed to get the first valve working as expected. :)
  4. C

    Synchronized Water Fountains

    Thank you! Ah the infamous fluid hammer I was reading about. So what type of valves are used in cases where I don't mind fluid hammer or better yet, plan to deal with it through some other method so I can have more precise control over the fountains? *EDIT* Just read your second post. I was...
  5. C

    Synchronized Water Fountains

    Alright I took your advice and went with the solid state relay and hooked everything up. Basically my laptop hooks up to my controller using a USB cable, the controller bread board has two wires coming off it that go to the input side of the SSR. I have a 26VAC transformer plugged in with one...
  6. C

    Cheaper Relay

    The signal goes up to 500 mA per: http://www.smileymicros.com/index.php?module=pagemaster&PAGE_user_op=view_page&PAGE_id=31 I have to use the 3.3v output because the signal needs to go through some registers and such per my design. I'm not sure how much current a small solenoid takes and...
  7. C

    Cheaper Relay

    1) Enough to power a lawn sprinkler valve solenoid. I don't know exactly. 2) It's a digital circuit so I think less than one amp? 3) No.
  8. C

    Cheaper Relay

    Hello all. I'm trying to use a 3.3v DC digital signal to complete a circuit running 26v AC. I managed to find this guy which I think fulfills that purpose: http://www.drillspot.com/products/455298/Crydom_D2425_Solid_State_Relay I'm just curious if there's a cheaper alternative. I know...
  9. C

    Synchronized Water Fountains

    I definitely agree with you here. I wasn't planning on attempting to build such an apparatus myself. I'll look into this more after I just get a single valve working with a garden hose. :] baby steps.
  10. C

    Synchronized Water Fountains

    Alright I managed to get some research done today and found that some common digitally controlled valves are called electrically proportional valves. Unfortunately they're pretty expensive. I expect this is due to the fact that they aren't simple on/off valves and have to accurately control flow...
  11. C

    Synchronized Water Fountains

    I'm not really sure at this point. I suppose to start I'm just looking for low psi equipment that I can plug straight into a wall socket to build a prototype of sorts. The way I envision it working is I'll have a main reservoir with a built in pump that keeps the tank at a certain psi. The...
  12. C

    Synchronized Water Fountains

    Hey all I was just curious if anyone has done any work with electronic valves and can give me some tips. I'm not sure if I should be looking for a soft switch that controls voltage to an electric pump or if there are pumps that can be controlled by signal wires. Also is there a specific...
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