Here we have valves such as the famous 300B, 211, 645, EL84 etc
The Type 45 is a directly heated audio output triode. A very popular choice.
The huge 4 pin directly heated triode, with an anode dissipation of 75 watts.
A natural sounding valve, commonly used in sigle-ended mode.
The ultra linear 300B is a directly heated triode. 40W max anode dissipation.
A tough indirectly heated triode from Russia, 60W anode dissipation.
The mighty 845 is a directly heated triode with a max. anode dissipation of 100W.