• WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES.
    Building, troubleshooting and testing of these amplifiers should only be
    performed by someone who is thoroughly familiar with
    the safety precautions around high voltages.

#26 pre amp

Very very similar to euro21 except without the S&B.....I am using only one SSHV2 for the 2 channels (space limiting!!).......actually he helped me a lot to put my 26 together......but I am using Salas SSLV for the filament instead......dead quiet 26...

My thanks to euro21 🙂
 
Use this schematic without TVC or AVC ouput
 

Attachments

  • My #26 preamp without TVC.jpg
    My #26 preamp without TVC.jpg
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Thankyou for the link......I will measure my 26 line amp when I get it back....and need to borrow a tone generator.

I now know to use ZOUT to keep the output impedance low; and is there any similar measure that I could take to keep the input impedance low ??