[ARC5] How Edwin Armstrong invented the superhet (according to Wikipedia)

[Hubert Miller]

You may have gotten onto the mailing list the same way a friend of mine did: I forwarded a group email to him, and presto.
YES, the owner - programmer of these listgroups will tell you, "That's not possible", but I saw it happen. My friend never
subscribed, but he had to "unsubscribe" to quit receiving group emails NOT forwarded or CCd to him.
-Hue Miller
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