I have a large (12 panel) Serge system I would like to supplement
with 15-20 of the more interesting Doepfer modules.

Dieter suggested that I ask this group if anyone had ever replaced
jack sockets with banana sockets and with what success.

He advised that one would have to disassemble the module, desolder
the jack sockets, drill the front panel for the banana sockets
[maybe. See the next paragraph], mount the module and the banana
sockets to the modified front panel, wire manually the banana
sockets and test the modified module

Is anyone aware of a banana socket that has the same diameter as the
miniature sockets (If so, the front panels would not have to be
changed and this would make things easier)

He also suggested I ask if anyone if he was willing to do this job
for me. If so, I'd be glad to pay you by the module or, if necessary,
by the hour (and let me know how many hours you estimate the project
would take). Anyone interested