• 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.

VT52: are the triode and pentode alike?


I just bought some nos Mullard VT52 pentodes. Allas, all of the vt52 schematics I can find are for VT52 dht triodes. Strangely enough both (seemingly very different) tubes share the same name and I can nowhere find any article or mention that explains the difference between these two types or that talks about the history of the vt52...

Is the pentode a later version? Can it be used in a vt52 triode circuit by connecting it in triode mode?

And most importantly, does anyone know if it sounds good? I've heard good things about the triode, but the type I have is and looks very different (with topcap and box-anode I think it's called). You can find a picture and specs here:


Many thanks!