'74 Instrument Panel with backlit heater lever positions

Discussion in 'Mech Tech' started by Belly, Jul 24, 2023.

  1. Belly

    Belly Button fluff

    As you suggested I've moved the earth tab over to the other plate at the top... Will finish it off oneway or other once I've sourced another bulb holder.
     
  2. I may have a spare you can have for nowt, if you need one? Are they the black twist-in jobs? Believe you can actually buy them new as well.
     
  3. Belly

    Belly Button fluff


    Pinched one of my other holders for a test…Second one looks quite a bit duller in series…

    IMG_1677.jpeg IMG_1678.jpeg
     
  4. Belly

    Belly Button fluff

    Thats with 2 red LED in series as per the existing wiring.
     
  5. Belly

    Belly Button fluff

    If you have a spare I can paypal a couple of quid to cover postage...
     
  6. You can have it for nowt. PM me your address and I'll bung it in the post.
     
  7. Belly

    Belly Button fluff

    My connectors are bloody enormous so I might have to bite the bullet and order some stuff…

    IMG_1679.jpeg
     
  8. Belly

    Belly Button fluff

    Jumpers made ready to try out …

    IMG_1680.jpeg
     
  9. Nope. Think the holders take 2.3mm spades. I'll chuck a couple of those in. Some bulbholders had the wires spot-welded on, so they would need to come off.
     
  10. Belly

    Belly Button fluff

    Tada…live jumper has to be so carefully placed and quite long as it has the 2 heater levers inside it!!

    IMG_1681.jpeg

    There was definitely a 'fook the levers' moment there...
     
    Last edited: Jul 24, 2023
    snotty likes this.
  11. Do you still need a bulbholder?
     
  12. Belly

    Belly Button fluff

    Aye if you can, I managed to cut up my big connector and reform it ok. I pulled a main light bulb holder to try the pair of reds out.
     
  13. I'll get it in the post with a few of the small connectors.
     
    Belly likes this.
  14. Belly

    Belly Button fluff

    Thanks very much man, I owe you a beer should we ever be in the same place !!
     
    snotty likes this.
  15. I won't forget ;).

    May find your LEDs are to bright if they do spring to life. Could put an extra limiting resistor in series with the whole lot...if you can be bothered...
     
  16. Belly

    Belly Button fluff

    The dimmer knocks them down a touch...to be honest I woldnt know where to start looking for a suitable resistor....I've got warm LED lights in the main console.


    EDIT: found this...
     
    Last edited: Jul 25, 2023
  17. If they do turn out too bright, best approach would be to get a low-ish value potentimeter/variable resistor (maybe in the hundreds of ohms range) in series with the LEDs and tweak it at night to your liking. Then measure the resistance if the pot and replace it with a fixed resistor.

    If you can be bothered ;)...
     
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  18. Belly

    Belly Button fluff

    Post office did their best to sabotage but I think it’s all arrived safely…

    IMG_1688.jpeg IMG_1689.jpeg

    Thanks again
     
  19. Lol. What on earth did they do with it? Hopefully in one piece.
     

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