Hi!
What do you think about my experimental layout for the poseidon board?
Note in the PSU that the bias supply is fed directly by one of the 400V secondaries since my power transformer does not have the -60V tap. The "hole" is a 10k bias-pot like this:
http://tubedepot.com/r-cts-l.html
I have finished the first experimental version and it sounds loud and solid on my DIY Fostex 206En BLH.
I have started with the wood work and sent a pair of aluminum plates to be CNC'd and anodized. The final product should look like the renderings below.
Cheers!
--Rodrigo.