Re: {Collins} Repainting tube shields

My understanding is that only the IERC shields are good for helping cool
the tubes below what they would run unshielded.  Now in some cases shields
are needed for RF reasons, and in other cases they are used just to hold
the tubes in their sockets when the equipment is shipped or subject to
vibration. So that it's better to take the shields off and save them until the equipment is to be shipped.

There are also the tube hold-downs which are like shields with big windows
cut in them to allow air to circulate more freely.

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