"Moose" wrote in message
...
Does anybody have any experience with the various vintage RCA mics?
What is the difference in sound between the 77A and the 77B, B1, C,
C1, D and DX and other ribbons?

The 77a was produced during the '30s and cardioid only. In fact it was the
first cardioid mike ever made.

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Bob Olhsson Audio Mastery, Nashville TN
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