Here some random tube pics...
The amp which is part of the main system. Based on WE205 tennis ball tubes.
Built by Dave and Jeffrey, so of course with mercury vapour rectifiers.
Aaaah that blue glow:
A close up to the peculiar mesh filament:
Another view of the 205s:
Impressive array of tubes by Guido and Menno:
This is a study about massively parallel push pull. It uses 100 6N3 tubes, 50 per channel.
Stay tuned for more tube porn from the ETF.