sideband wrote:... Being completely out of 33uF caps I had to bodge three caps in parallel and make a temporary substitute, total value 30.7uF....16uF, 10uF and 4.7uF the best I could come up with!
Don't forget the tolerance!
The original would have been +50% -20% or worse.
I haven't checked the tolerance of modern caps but would +20% -10% be in the right ball park?