When teaching cave rescue communications, most of which uses
wired military surplus field phones, we teach yelling into the
ear piece if the microphone fails. Another example of a dynamic microphone.
73 Bill AE6JV
On 11/7/20 at 7:47 PM, [email protected] (Bill Steffey NY9H) wrote:
Many a speaker has been forced into service as a microphone,
and is a frequent design element as both in an intercom.
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Bill Frantz | "I wish there was a knob on the TV to turn
up the
408-348-7900 | intelligence. There's a knob called
"brightness", but
www.pwpconsult.com | it doesn't work. -- Gallagher
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