Everything is based on design. A tube power supply might be OK or not depending on component interaction.
That said, at the price point of the H1200 series, there is no reason NOT to get a better performing Herron VTPH-2a. And that's not just my opinion, but the opinion of every Herron owner I know.
That said, at the price point of the H1200 series, there is no reason NOT to get a better performing Herron VTPH-2a. And that's not just my opinion, but the opinion of every Herron owner I know.