Orange film caps and some othere wirde stuff from a tv

Discussion in 'General Electronics Chat' started by arthur92710, Sep 28, 2007.

  1. arthur92710

    Thread Starter Active Member

    Jun 25, 2007
    I got a tv pcb abd took some parts out of it.

    I got a few of these orange rectangular things. I read that these are film caps. But how do i tell there values?
    Some are
    and a big one that says 4n7 j 1400Vp-p 375 kp/mkp f0 (looks like it has a small Phillips symbol on it)

    then theres a big brown thing. it says 274j then an s in a circle then 200

    also there is a glass thing. Its clear has 2 leads no markings and 2 metal things in side. it does not do any thing when i passed voltage trough it.

    Theres more but i g2g eat.:D
  2. thingmaker3

    Retired Moderator

    May 16, 2005
  3. arthur92710

    Thread Starter Active Member

    Jun 25, 2007
    Whats an 028-9 emd mex615 its blue and magnetic.
  4. beenthere

    Retired Moderator

    Apr 20, 2004
    Your glass goodie is probably a spark gap to protect circuitry if the high voltage should rise too far.
  5. cumesoftware

    Senior Member

    Apr 27, 2007
    For example, 100K100 means a 10pF capacitor, grade K (10% tol.) and rated 100V. The first two digits indicate the base values and the third is the multiplier. Therefore you know that it is a 10pF capacitor because 10 x 10^0 = 10. Notice the value of this capacitors is expressed in pF. For example, if the capacitor was marked 101K100, you would have a 100pF capacitor, since 10 x 10^1. Now the letter tells the tolerance. J means 5%, K means 10% and M means 20% tolerance. The last digits indicate the voltage rating in volts. By the way, I think that the first and fourth mentioned caps have some missing digits.

    The other cap that says 4n7 J 1400Vpp is easier to read. It means that has a 4.7nF capacitance, 5% tolerance and a rating of1400V (peak to peak).

    The last one that says 274J uses the same conventoin of the first five capacitors. Don't mind the S inside a circle. That one is a 270000pF, or a 270nF capacitor with 5% tolerance and 200V rating.

    The last device seems to be some kind of a diode, but who knows.