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Old March 15th 06, 03:06 PM posted to rec.radio.cb
Homer
 
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Default TX Bias setting for TRC-457 type radios

I have the service manual but it is in storage, would like to know the
mA setting for VR15 and VR16.

thanks,

Homer

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Old March 15th 06, 08:07 PM posted to rec.radio.cb
Scott in Baltimore
 
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Default TX Bias setting for TRC-457 type radios

Homer wrote:
I have the service manual but it is in storage, would like to know the
mA setting for VR15 and VR16.


100ma?
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Old March 15th 06, 08:23 PM posted to rec.radio.cb
Homer
 
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Default TX Bias setting for TRC-457 type radios

No, I know they are both different. One is higher.

Homer

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Old March 15th 06, 08:32 PM posted to rec.radio.cb
Scott in Baltimore
 
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Default TX Bias setting for TRC-457 type radios

Homer wrote:
No, I know they are both different. One is higher.

Homer


A TRC-465 is 65mA for driver and 70mA for final.

You can always measure the voltage to it. You need .67 volts
to overcome the diode's junction on the base.
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Old March 16th 06, 11:57 AM posted to rec.radio.cb
Homer
 
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Default TX Bias setting for TRC-457 type radios

Thanks for the replies, I went and got my book from storage.
FYI:
VR15 = 40ma
VR16 = 15ma.

Homer

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