First RCA sound-on-film commercial recording equipment
- Made:
- 1928 in United States
First "R.C.A." sound-on-film commercial recording equipment, type R1, used in this country (excluding amplifier & control table) in 1928.
First "R.C.A." sound-on-film commercial recording equipment, type R1, used in this country (excluding amplifier & control table) in 1928.