RCA Type 77-A microphone

The RCA Type 77-A microphone is a well-regarded ribbon microphone that was introduced in the mid-20th century by RCA (Radio Corporation of America). It is part of a series of ribbon microphones that RCA produced, designed primarily for professional recording and broadcasting applications. Key characteristics of the RCA Type 77-A microphone include: 1. **Ribbon Element**: The Type 77-A features a bi-directional (figure-eight) pickup pattern that captures sound equally from the front and rear.