Information about the RCA LG 234 soundhead.
Information and instructions for the RCA Photophone “Type C” sound and picture reproducing equipment.
Information and specifications of the RCA 1000 35mm film projector.
Operating instructions for the LMI-9031 rotary stabaliser soundhead by RCA.
A schematic and wiring diagram for RCA Photophone LMI/MI-9031 & LMI/MI-1051 soundheads.