A copy of the 2x30W EL34 tube amplifier:
but redrawn using EasyEDA valve symbols with simulation models and the output transformer modelled so that the whole amplifier (excluding the PSU) can be simulated.
To learn more, see The EasyEDA tutorial: https://easyeda.com/Doc/Tutorial/
To open the amplifier simulation in the Editor, click on the 2x30W EL34 tube amplifier tab then click on the green pencil icon in the upper right of the view window, save the file if prompted and then follow the instructions in the schematic.
The transformer model is the subcircuit that is used for the transformer symbol in the amplifier simulation. To learn more, see The EasyEDA tutorial.