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Randy38

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About Randy38

  • Birthday 01/24/1967

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  1. Bear with me,I'm new to this stuff.A lot of the projects i'm wonting to do call for a 1m resistor.Can'nt find any at my locale Radio Shacks. Is there a way to make one?Say like putting two 500 resistors in a series? ???
  2. Thanks, I'm on my lunch break right now.I'll check it out tonight. Thanks again. ;D
  3. I'm working on a project with this Relaytimer.I,ve got it set for a 6 second delay to activate my project. The problem is (S1-switch/ on the schematic) I want to say push the button and release it and it will delay 6 seconds before acvtivating.Got that part done.But i wont to be able to push the button and release then the 6 second count starts.If pushed again before the 6 second is up it needs to reset.And wait for the second release to start the count down again. What do i need here.Another switching device or ?? Thanks for any ideas :) When activated by pressing a button, this time delay relay will activate a load after a specified amount of time. This time is adjustable to whatever you want simply by changing the value of a resistor and/or capacitor. The current capacity of the circuit is only limited by what kind of relay you decide to use. Part Total Qty. Description Substitutions C1 1 See Notes R1 1 See Notes D1 1 1N914 Diode U1 1 4011 CMOS NAND Gate IC K1 1 6V Relay S1 1 Normally Open Push Button Switch MISC 1 Board, Wire, Socket For U1 Notes: 2. To calculate the time delay, use the equation R1 * C1 * 0.85=T, where R1 is the value of R1 in Ohms, C1 is the value of C1 in uF, and T is the time delay in seconds. 3. S1 may be replaced with an NPN transistor so the circuit can be triggered by a computer, other circuits, etc. 4. Most any 6V relay will work for K1. If you use a large relay, you my need to add a transistor to the output of the circuit in order to drive the larger load.
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