Realistic 42-2101/42-2101-a Phono Preamps

Discussion in 'Audio Hardware' started by Robin L, Aug 12, 2015.

  1. scompton

    scompton Forum Resident

    Arlington, VA
    The Realistic STA-2200 receiver uses MOSFETs. Sounds nice too.
  2. UnmarkedBill

    UnmarkedBill New Member

    I ended up with this Realistic 33-1057a, a little later I suspect, but similar stuff inside? I noticed the schematic of the 42-2101 calls for C1327 transistors, mine has C1815 transistors, are these also a FET? Would you suspect this preamp is comparable to the 2101 or 2101a sonically?

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  3. UnmarkedBill

    UnmarkedBill New Member

  4. WestGrooving

    WestGrooving Forum Resident

    California, U.S.A
    I have the 42-2101A and believe it uses a pair of BJT NPN transistors for each channel.
  5. Mileater

    Mileater New Member

    the 42-2101a and 42-2109 upgraded are excellent, they perform way past there value!!
    Last edited by a moderator: Jun 3, 2018
  6. Paul Lancaster

    Paul Lancaster Member

    Trenton, TN
    Would you mind sharing how it's been upgraded? Re-cap, power supply, etc.
  7. harby

    harby Forum Resident

    Portland, OR, USA
    Here's my attempt at making the schematic diagram for this thing legible

    qwerty, ranch 22b and cmarti like this.
  8. Paul Lancaster

    Paul Lancaster Member

    Trenton, TN
    Thanks harby, appreciate that.

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