Hi there all.
I have for a change sim a schematic who I want to try on mine hybrid who do play without feedback for a long time.
Problem is that I need high open loop, and that is with tubes less easy as with transistors.
But the cascaded 12AX7 do quite nice. Are there more ways to get a preamp with high gain? Did try also cascode
but not such a succes as this one.
see the schematics and sim. output leven 4 amps, so looks very good that distortion.
I have for a change sim a schematic who I want to try on mine hybrid who do play without feedback for a long time.
Problem is that I need high open loop, and that is with tubes less easy as with transistors.
But the cascaded 12AX7 do quite nice. Are there more ways to get a preamp with high gain? Did try also cascode
but not such a succes as this one.
see the schematics and sim. output leven 4 amps, so looks very good that distortion.
