• 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.

Sanity check differential amplifier for DAC

@Chris Hornbeck thanks for the feedback, the actual value if the I/V resistor is still to be decided. A higher value gives more amplification, so that's something I'll investigate. Perhaps I need to switch to a 6SL7 and 12SL7 to have more amplification so I can lower the resistor.

@Merlinb, thanks for the input I'll have a look at a CSS instead, popping the grids wasn't the intentions. Also, I'll look up the use of diodes in your book (got a physical copy 🙂 )