Ranger-I Keyer Field Modification

[W3NE]

I am restoring an original Ranger-I that has never had the timed-sequence keyer field modification kit installed. I want to incorporate the keyer circuit in my restoration and would like to obtain a copy of the instructions Johnson included with the field kit, or at least learn how the a-c for the -65 volt rectifier was obtained.

Tnx,
Bob, W3NE