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Electronics wizard - little help please

Discussion in 'The Hokey Ass Message Board' started by 31Vicky with a hemi, Jul 7, 2013.

  1. I can only get one pic in each post ....

    I need to duplicate the signal produced by this cruise control switch on the gray wire (1884)

    12volts thru an 8.5k when on and Looks like its simply 12 volts thru a 4.25k ohm resistor for resume/accelerate and 12 volts thru a 1.5k ohm resistor for set/ cruise.



    Next pic coming up
     

    Attached Files:

  2. I'm pretty sure this will do it .
    But I'm not 100% certain.
     

    Attached Files:

  3. Then my next question is where can I get them rascals ?
     
  4. no.scar.no.story
    Joined: May 6, 2012
    Posts: 325

    no.scar.no.story
    Member

    Radio Shack keeps a selection of components, and can order what they don't stock.
     

  5. oltruckag
    Joined: Aug 13, 2009
    Posts: 114

    oltruckag
    Member

    I've got a ton of them left over from various electronics labs in college - I'll check my stash and see if have either resistors with those values or can make those values. If so, I'm happy to drop them in the mail.

    Looks like your diagram is correct.

    Tyson
     
  6. Ill be headed to radio shack in an hour or so.
    Looking for more input if its available
    Thanks
     
  7. Rat rod rat rod rat rod

    What color is this ?

    What should I do ?

    What cam?

    Is a Sbc traditional?

    Solder or crimp?

    Happy birthday?
     
  8. LaSalle Gearbox
    Joined: Feb 3, 2005
    Posts: 115

    LaSalle Gearbox
    Member
    from ohio

    bad boys rape our young girls but violet gives willingly. get some, get some now.

    I expect there are more family-friendly color code reminders, but that was Navy 1967.
     
  9. d2_willys
    Joined: Sep 8, 2007
    Posts: 4,148

    d2_willys
    Member
    from Kansas

  10. coryw
    Joined: Nov 4, 2005
    Posts: 225

    coryw
    Member
    from Omaha, NE

    You'll probably need to use potentiometers for a couple of those values.

    Posted using the Full Custom H.A.M.B. App!
     
  11. That's not gonna be good.
    I can stack the resistors at least I think I can
     
  12. I'm guessing your trying to replicate a stock switch that doesn't fit with your current set up? I had the same problem because my donor vehicles stock switches were in the steering wheel. I tried going this route as well. I didn't have the values, so I bought a set of stock switches out of the junkyard and measured them. Long story short, it didn't work and I'm not really sure why, but I think it might have been due to changing the overall system resistance by shortening the wiring harness and eliminating the clock sping assembly in the column. I'm going to try using the stock harness and switches, and just hid them inside the center console since they DON'T match the interior of the car. Just food for thought, hopefully yours will work fine.
     
  13. coryw
    Joined: Nov 4, 2005
    Posts: 225

    coryw
    Member
    from Omaha, NE

    Depends on what you mean by stack. If you put them in series then the resistance is additive Rtotal = R1+ R2.

    If you put them in parallel then the formula is Rtotal = (R1*R2)/(R1+R2)
     
  14. I did get A s in math but ill just stick with rtotal = r1+r2 or 345
     
  15. oltruckag
    Joined: Aug 13, 2009
    Posts: 114

    oltruckag
    Member

    Between changing jobs at work, a 17 month old (and #2 due in a week) it took me FAR to long to find my stash of electronics crap and actually sort through the resistors:

    8.25k = 8.2k (Gry Rd Rd) + (2) 100 (Br Bk Br) in parallel
    4.42k = (2) 2.2k (Rd Rd Rd) in series + (2) 100 (Br Bk Br) in series
    1.5k = (Br Grn Rd)

    If you still need 'em, PM me your mailing address and they are heading your way.
     
  16. CoolHand
    Joined: Aug 31, 2007
    Posts: 1,926

    CoolHand
    Alliance Vendor

    For future reference, when you need electronic components you should always check these two places right after your local Radio Shack:

    www.mouser.com
    www.digikey.com

    Those places literally sell everything. If it is available, they have it and will get it to you in two to three days. One part or ten thousand.

    Plus, if you buy from digikey they will send you a giant (like 4" thick) catalog every three weeks for the rest of your life.

    Buy your resistors and as a bonus, get free packing material/shit paper for life! :D
     
  17. oneredryderone
    Joined: Feb 26, 2007
    Posts: 131

    oneredryderone
    Member

    i've NEVER had luck at my local RADIO SHACK.

    if you live east of the KANSAS........... GOOGLE RS ELECTRONICS. on
    their home page.........SALES OFFICES in the upper banner, details 10 locations.

    i've found the counter people very helpful.

    what they don't have 'in-store' is available thru-the-catalog.

    thanx red
     
  18. d2_willys
    Joined: Sep 8, 2007
    Posts: 4,148

    d2_willys
    Member
    from Kansas

    Use these:

    8.25KXBK-ND
    4.42KXBK-ND
    1.50KXBK-ND

    Just click on each one and order from Digikey! They are 1% resistors, so you have the best chance of your circuit workin!

    BTW: They are 10 cents each, so 30 cents, plus shippin and handlin!
     
  19. CoolHand
    Joined: Aug 31, 2007
    Posts: 1,926

    CoolHand
    Alliance Vendor

    See what I mean? :D
     

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