The RCC brass have now emailed me back on this.
Nothing with glass diodes or valves are permitted due to the fire risks in airports. They also require 2 staffers to lift, and that has implied injury problems.
Please keep that in mind when donating.
And they are sick of having Spanish keyboards donated as finding the "@" sign is far too difficult for most American users.
And the ones donated by the Bangladesh and Zambian Governments as surplus were returned as they ran on 220-240 volt power - please be mindful of that reality.
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Glen ~ sipping bubbly from a UA 747-400 exit row 15 near you SOON!