Srf2976

Discussion in 'Wireless & RF Design' started by Neil.S, Jul 4, 2010.

  1. Neil.S

    Thread Starter New Member

    Jul 4, 2010
    3
    0
    I have problem with finding the RF AMP transistor --- SRF 2976.
    Can anyone help?
     
  2. beenthere

    Retired Moderator

    Apr 20, 2004
    15,815
    282
    That number does not seem to turn anything up. Got any other numbers? What are the operating parameters?
     
  3. retched

    AAC Fanatic!

    Dec 5, 2009
    5,201
    312
    I have a problem finding 6.2 million dollars. Can anyone help? ;)

    Just kidding.

    It appears to be an old motorola part. I would check with them regarding a replacement, or call these guys to see what they can do for you:
    http://www.rfparts.com/transistors_MRF-TP.html#SRF2072
     
  4. Neil.S

    Thread Starter New Member

    Jul 4, 2010
    3
    0
    I want to find some one to replace. But I even can't find the SRF2976 's datasheep.

    ------------------------------------------------

    Thank you very much!
    I I have checked that part,but no one is proper.

    ------------------------------------------------

    the transistor is used to the circuit that HF 30Mhz ,AM & SSB ,Last Stage AMP, 250mW(TIP) output
     
    Last edited: Jul 6, 2010
  5. Neil.S

    Thread Starter New Member

    Jul 4, 2010
    3
    0
    I had tried the MRF479. Maybe its' output capacitance is to big or other. when the Frequence reach 11Mhz,the output power reduce too much.
     
  6. bertus

    Administrator

    Apr 5, 2008
    15,649
    2,348
    Hello,

    Do you have the schematic where this transistor is used?
    This would give probably a better idea for a replacement.

    Bertus