AC Bias Oscillator Circuit (Cassette Tape Rec.)

Discussion in 'The Projects Forum' started by electronics_shamim, May 8, 2007.

  1. electronics_shamim

    Thread Starter Member

    Apr 28, 2007
    10
    0
    Sir,

    Does anyone having any idea or schematic about AC Bias Oscillator wired around BC148B or SL100 or any NPN-Transistor (with Bias Oscillator Coil) or any IFT of Radio set will do?

    What is the ohms of AC Bias Erase Head. I understand Bias Oscillator frequency is applied for erasing as well as recording unto cassette tape. Is the frequency of AC Bias doubled at the time of high-speed dubbing (duplicating).

    Any suggestions is highly solicited.

    Regards,
    Shamim_India.
    ====
     
  2. hgmjr

    Moderator

    Jan 28, 2005
    9,030
    214
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