circuit building with alternate parts

Discussion in 'General Electronics Chat' started by whale, Jan 7, 2010.

  1. whale

    Thread Starter Active Member

    Dec 21, 2008
    111
    0
    hello friends,

    can anyone tell me the exact match for the transistor 2sc2078 ?

    i gonnna use it in a amplifier circuit at 13 mhz.

    and also make me clear with my doubt !

    my doubt is , can i opt for a binacular core instead of two ferrite beads glued togather in parallel manner ?iam using these cores for building inductor.will the inductance value change when i use binacular core (for same turns as in ferrite beads)?
     
  2. bertus

    Administrator

    Apr 5, 2008
    15,648
    2,348
  3. whale

    Thread Starter Active Member

    Dec 21, 2008
    111
    0
    thanks bertus
     
  4. Wendy

    Moderator

    Mar 24, 2008
    20,766
    2,536
    Part of being an engineer or a tech is figuring out how to make less than ideal parts work in the real world. Many (if not most) an exact match is not needed, all you have to do is look at what the stressors are going to be, and make sure the part can handle it.
     
  5. bertus

    Administrator

    Apr 5, 2008
    15,648
    2,348
  6. t06afre

    AAC Fanatic!

    May 11, 2009
    5,939
    1,222
  7. radiohead

    Active Member

    May 28, 2009
    474
    31
    I built Bertus' amplifier but used an IRF-510 instead of the IRF-840. It seemed to work fine after a little tweaking. If you can't find the exact parts, I would recommend breadboarding the circuit first so you can experiment with part substitutions without having to do alot of soldering and de-soldering. Using a breadboard or free-style soldering can help you with your experiments.
     
Loading...