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  1. G

    Voltage reduction question?

    The plastic case of the radio was used just need voltage reduction suggestion from batter volts
  2. G

    Voltage reduction question?

    I am working on a project that I want to use a battery pack that is 7,4v 1800mah to power a board for a ecig project that has the below specs what would you suggest to lower the voltage to a safe level to run the board.Basically I gutted a Handheld radio and building a ecig out of it but wanted...
  3. G

    Need help with circuitboard design

    perfect thank you sir
  4. G

    Need help with circuitboard design

    I have a circuit thats based on Proto Stripboard. I built a couple and they work as designed. however I would like a cleaner board so was thinking express pcb or other place to make me some boards up. They have a designer however I am on a MAC and its for PC. If anyone knows of someone willing...
  5. G

    Need assistance with 555 Timer Circuit

    oops yes C1 + to pin 2 and - to Pin 1
  6. G

    Need assistance with 555 Timer Circuit

    Kris does this look correct according to the suggested changes. Thank you in Advance
  7. G

    Need assistance with 555 Timer Circuit

    Kris thank you I will reconfigure this circuit tomorrow. I should have everything I need on hand to do this. I dabble a lot in ham radio and building stuff but mostly in kit form so I am Still Learning all I can building circuits from scratch.... Thank you very much
  8. G

    Need assistance with 555 Timer Circuit

    Well Here is what I did with 9volts in to the 555 if it does not last then I will go the CD4060 route. I ran the circuit for 2 hours and it seemed to cycle fine for now. Thank you for all the help. I wanted to try this seeing for now I had all the components on hand....
  9. G

    Need assistance with 555 Timer Circuit

    thank you kris What if i decided to go 180 sec is that acceptable for the 555
  10. G

    Need assistance with 555 Timer Circuit

    I have some 555 ICs and need to find a schematic for a circuit that will be on for 5 minutes and off for 5 minutes. Actually between 3-5 minutes is fine however the amount of time circuit is on should be very close if not the same as time off. this will run a relay on and off I have the relay...
  11. G

    Need Help with auto switching Reverse Polarity Circuit

    Here is what I am wanting to do and cannot figure out how to accomplish it. I want to use 3 9v Batteries in Series and run +/- 27v in to a circuit and I want +/- 27 also out of the circuit. Heres where I am unsure. Although I know I could use a switch to manually change polarity. I am wanting a...
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