[R-390] Alternative to IERC tube shields?

[Larry Snyder]

2002tii <bmw2002tii at nerdshack.com> wrote:
> I actually tested these in their original application (high-end 
> high-fi), and found that both the plates and the envelopes of tubes 
> ran significantly hotter with the devices installed.  More audiofool
> snake oil.

Right up there with hand-turned wood preamp knobs to reduce the
microphonics and increase the 'sonic purity' of your system.
I usually spell it audiophool.
-ls-