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Wayback machine has the original article.
IMO, the CL30s hurt nothing and help every aspect of safety of the transformers and the circuit. Perhaps some people are paranoid about the very small amount of residual resistance in a current limiter, once it takes itself out of the circuit by heating up. Otherwise, I don't get it.
"Not seeing the need to limit the current to either the filament or driver transformers, I left the CL-30 connected to only the output supply transformer fuse"
Inrush current on heaters is MASSIVE relative to their quiescent current. I wouldn't be surprised if a single 6336 wanted 10A of inrush current on the heaters. I suspect that the CL-30 is there to help mitigate that. I would also not use Hexfreds, they are obsolete/inferior technology.
What's always missing from write-ups like this is the report 2-5 years down the road regarding reliability.
In addition, Paul was using the 6336; the filament transformer circuit *definitely* would have benefited from an inrush limiter!
There have been other improvements in the circuit since Paul did his article; the link below is more up-to-date.
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