Brown repeater, c. 1900s.

1900-1910

Microphone type EL6040/03

1965-1974

Microphone

Radio Microphones

1962

AKG C-451 EB Microphones

1969-1994

Microphone

Three of the first microphones, 1878.

1878

Reslo ribbon microphones, Type VRT/M

1962

Reslo miniature ribbon microphones, Type RB

1961

STC 4106-A Microphones