TU56/TC11 restoration - Power supply question

Apart from the shock (and dangerous sudden-hi-energy discharge) risks - one thing to be aware of when 'bringing up' large analog power supplies is the condition where the filter capacitor(s), or other big electrolytic device, develops and internal short, or loses it's chemical polarization, and the esuing thermal rise causes the case to burst. Most big caps have built-in rupture vents, or a strategic 'crease' in the aluminum to keep this from becoming an explosion - but I have been the unfortunate recipient of more than one suddenly-exploding capacitor. Not counting the sheer terror of having something go BANG! right next to you, the larger units can store considerable energy, both pressure and electrical, and I've seen them do a lot of damage, especially the ones mounted upside-down, which have a tendency to launch off the chassis like a mortar shell and poke holes in walls. Then there's the hideous mess that all the 'guts' of the cap makes when they explode and puke up all over everything. So the moral of the story is to bring a long-dormant power supply up slowly, using a variac and loads, and to be vigilant for any signs of cap leakage, swelling, getting suddenly warm, or hissing sounds coming from one.