Switch to English Language Passer en langue française Omschakelen naar Nederlandse Taal Wechseln Sie zu deutschen Sprache Passa alla lingua italiana
Members: 71,568   Posts: 1,573,500   Online: 687
      
Results 1 to 4 of 4
  1. #1
    rai
    rai is offline

    Join Date
    Sep 2007
    Shooter
    Multi Format
    Posts
    46

    Voltage of Polaroid 500 instant color film

    Does someone know the voltage of the Polaroid 500 instant color film?
    I suppose that it will be the same that the cam uses Captiva/Vision,
    I do not know... help me thanks

  2. #2
    Mike Wilde's Avatar
    Join Date
    Aug 2006
    Location
    Misissauaga Canada
    Shooter
    Multi Format
    Posts
    2,939
    Images
    29
    Have you sourced a voltmeter and measured the open circuit voiltage of a film pack? Do you still have a supply of film ( I know, we all hope Polaroid is coming back into production)

    Otherwise, if you are electronic handy, and going to modify this camera for other purposes (a noble calling, in my book) and have no film pack to measure with, then:

    Hook up a filtered full wave AC-DC rectifier to the input on the camera, and feed it AC from a variac, starting at 0 Vac. Peel the camera apart an look at the polarity of any capacitors inside the camer's pcb to figure out which pad is positive and which is negative, as there may have been no provision in the original design to deal with the possibility of revered voltage with a film pack power source. Hook up the dc leads, and start to step up the voltage on the variac to give you increments of 1.2V DC coming out of the rectifier. At some point the camera will power up. Do not go higher than the first increment at which the camera will power up at.

    Unless you have a powerful DC supply, do not try to fire the flash. Batteries can supply way more short circuit current than most DC power supplies can the instant that an electronic flash capacitor draws when it first starts to charge after being discharged.
    my real name, imagine that.

  3. #3

    Join Date
    Jan 2007
    Shooter
    Large Format
    Posts
    284
    I believe the Polapulse Polaroid battery in SX-70 and type 600 is 6V. Don't know if 500 is different.

  4. #4
    rai
    rai is offline

    Join Date
    Sep 2007
    Shooter
    Multi Format
    Posts
    46
    I decided to verify with an adapter... and the winner is...... 6 volts. Thanks



 

APUG PARTNERS EQUALLY FUNDING OUR COMMUNITY:



Contact Us  |  Support Us!  |  Advertise  |  Site Terms  |  Archive  —   Search  |  Mobile Device Access  |  RSS  |  Facebook  |  Linkedin