May 10, 2023
OPERADIO - tube mixer
“... OperRadio, established in 1922, became the DuKane Corporation in 1951."
cred: facebook.com/Rob Murray, radiomuseum.org/r/operadio_audio_pre_amplifier
seen from United States
seen from China
seen from Netherlands
seen from Spain
seen from Saudi Arabia
seen from China
seen from Singapore
seen from China
seen from China
seen from United States
seen from United States
seen from United States
seen from China
seen from China
seen from United States
seen from United Kingdom
seen from United States
seen from Malaysia
seen from Netherlands
seen from Russia
OPERADIO - tube mixer
“... OperRadio, established in 1922, became the DuKane Corporation in 1951."
cred: facebook.com/Rob Murray, radiomuseum.org/r/operadio_audio_pre_amplifier
1930 herber brothers by Al Q