Thanks to all who responded to my microphone query......
This is the tally of the responses...
3) D-104 (no amp)
5) Electret element ( including Radio Shack)
4) Heil HC-5
1) Heil HC-4
2) TT Desk Mic
1) Yaesu Headset
1) Shure 444
Not one fancy broadcast desk mic in the group....!!!
Guess I'll leave the 664 on the Collins and use the headset with the
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