From: "Gary Poland" 
Subject: Re: [drakelist] Fw: TR7 Mike Gain


"Gary Poland"  made an utterence to
the drakelist gang
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Bill,
  Normal mic gain for a TR-7 with most dynamic mics is around 9 to 10 =
o'clock. The mic level to obtain the ALC led increases with frequency. =
Pin 3 of the mic connector runs straight to the transmit exciter board, =
pin 4 goes through a 470k resistor. Pin 4 was for mics with high output =
I am told. I have tried many mics on several TR-7's over the years, =
D104, 444D, 526T, 7077, 7075, and various hand mics. All performed well =
and with more then enough gain through pin 3 and with MIC GAIN settings =
around 9 or 10 o'clock. I suspect you have other problems. I am not =
familiar with the Heil mics, but if you had bad audio with your 7077 =
then I suspect the TR-7 has problems.

73, Gary
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Bill,
  Normal mic gain for
a TR-7 with =
most dynamic=20
mics is around 9 to 10 o'clock. The mic level to obtain the ALC led =
increases=20
with frequency. Pin 3 of the mic connector runs straight to the transmit =
exciter=20
board, pin 4 goes through a 470k resistor. Pin 4 was for mics with high =
output I=20
am told. I have tried many mics on several TR-7's over the years, D104, =
444D,=20
526T, 7077, 7075, and various hand mics. All performed well and with =
more then=20
enough gain through pin 3 and with MIC GAIN settings around 9 or 10 =
o'clock. I=20
suspect you have other problems. I am not familiar with the Heil mics, =
but if=20
you had bad audio with your 7077 then I suspect the TR-7 has=20
problems.
 
73,
Gary

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