Thursday, March 15, 2012

JFET Preamp By Albert Kreuzer

Schematic

PCB component side

PCB solder side
Pre amplifier with some level use JFET (BF245). This preamp can make sound like a tube preamp. Why use Jfet, cause it has like tbe caracteristc with lower overload than tube (not like tube real).
at

3 comments:

  1. bxtronicsMarch 21, 2019 at 5:10 AM

    Thanks for sharing :) disponible en France chez Bxtronics

    ReplyDelete
  2. UnknownFebruary 2, 2020 at 5:17 PM

    Alguien ya a armado este pre amplificador?
    Tubo problema?

    ReplyDelete
  3. WawanAugust 3, 2021 at 11:35 PM

    I built this preamp, but the tone control ( bass, mid, trebble) is not function...just flat...please help me

    ReplyDelete