The failed capacitors are replaced so the regulators are ready to test on the upcoming weekend.
The 11 has three regulator modules.
2 x H7441 5V regulators are switching supplies that use the 28V from the main transformer. The main 22000uf capacitor in one of these was faulty. Replaced it with a 20000uf modern one (notice the size comparison between the two pictures). If there is still ripple on the output then another one can be paralleled up. The other 5V regulator looked like the 22000uf capacitor had been replaced sometime at some point and that tested out OK. In both 5V regulators I replaced with small 560uf and 1200uf capacitors in the CLC filter that cleans the switching noise from the output as they looked to be leaking.
1 x H745 15V regulator which is an older linear design. This had a massive 33000uf capacitor but it was also faulty. The smaller 4700uf capacitors on the output where fine. 33000uf/50v capacitors similar to the original are not available at any reasonable price so I replaced it with 3 x 10000uf capacitors in parallel. The three caps stack well within the existing case. The packing shown in the picture ensures they don't short together. That can be replaced once it is tested.