Originally Posted by martix_agent
does that magic box raise its value, even though it doesn't actually do anything?
What do you mean?
Tom Kaye himself said that it worked until the early/mid 3000 serial numbered mags when he started designing them with higher internal volumes to run at slightly lower pressures. Basically the magic box worked as a reverse regulator or just a volumizer, I can't remember which of those two, but it was moot once Kaye modified his base Automag design and started production mid 3000 serials.