Here's the performance that put the Philicorda on the map:
(Mark Ratcliffe wrongly introduces it as an omnichord).
PS, I agree the usual problem with a non functioning spring line reverb is the driver transformer, very fine windings and go open alot. (No idea if this is a specific fault on the philicorda)
https://www.youtube.com/watch?v=0NDoKK-5zYw