[ARC5] BC-611 Production numbers...now throat mics

[Hubert Miller]

This is a very interesting document, thanks.
I wonder if their statement that Japanese throat mics were magnetic devices is correct. I'll have to verify that. I don't see how a magnetic
element could drive a single tube modulator by itself. As for having to press the mic against one's throat when transmitting, there still is
some advantage in that the microphone is constantly with you, not dragging anywhere. T-17s didn't have any kind of clip feature.  -Hue
>After trying several of the U.S. throat mics, I still have to concur with the Bell Laboratory folks' conclusion on pages 131-133 of https://aafradio.org/docs/NDRC_Division_17_excerpts.pdf<https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Faafradio.org%2Fdocs%2FNDRC_Division_17_excerpts.pdf&data=04%7C01%7C%7Cc74e2d55fbf14a0a631c08d8d3969746%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637491991022189777%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=ar1OcyxSLen4vOTxsyZsiMV%2BYHfWT5CMR7o8RzagzUg%3D&reserved=0>  (but I'll have to admit that those results don't cover any German mics - just Japanese, British, and the American T-30, along with the normal handheld mics like the T-17 for comparison.)  There's all sorts of interesting curves in there to provide some context about relative intelligibility.

         73,
 - Mike  KC4TOS
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