Despite the oldest solid state audio circuitry now qualifying for a pension and a bus pass where this is being written, the thermionic tube retains a foothold in the world of audio — cherished ...

First made in 1959, this is the best-selling tube amplifier of all time ... American manufacturer left an indelible legacy on ...

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.

If you're like Danish Pete and looking for a compact single-channel head for '60s British-style cleans and overdriven '70s ...