• 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.

Idea for a SE tube amp 5-10W

Turning back with the thread I was thinking to opt for EL34, being nearby easy to get. The problem is the OT. Excluding Novarria (Milan) I took a look rather on don-audio but the right OT is now not available; other options may be instead the GXSE10-16-8K or the GXSE10-6-2.5K? With a 8Ohm speaker I'd have a reflected impedance of 4k and 3.3k respectively