Self-taught boutique builder Charles Henry puts musicality first with his designs, winning fans including Grace Bowers and ...

First made in 1959, this is the best-selling tube amplifier of all time. Every product is carefully selected by our editors. If you buy from a link, we may earn a commission. Learn more Dynaco ...

and remain a spectacularly cheap way to boast a tube amp in your hi-fi even if it might not always be the best possible amp.

So while we were chatting, I took the opportunity to draw on his know-how regarding the myths and realities of how to get the most from your tube ... up amps and powering them down to best ...