7:04
PM
Subject: Re: [Repeater-Builder] GE MASTR
ER41 Receiver Low Audio Output
You mean toast everything ! !!!
Mark Holman, CROAB8RU
- Original Message -
From:
Q
To: Repeater-Builder@yahoogroups.com
Sent: Thursday, November 25, 2004 4:23
:
Dave Baughn
To: Repeater-Builder@yahoogroups.com
Sent: Tuesday, November 23, 2004 3:25
PM
Subject: Re: [Repeater-Builder] GE MASTR
ER41 Receiver Low Audio Output
Matt, no it is not worth the trouble. Just feed only the 10 volt section.
That will disable the audio. The 12
You mean toast everything ! !!!
Mark Holman, CROAB8RU
- Original Message -
From:
Q
To: Repeater-Builder@yahoogroups.com
Sent: Thursday, November 25, 2004 4:23
PM
Subject: Re: [Repeater-Builder] GE MASTR
ER41 Receiver Low Audio Output
Sure will cause
Ok, brings up a good question, I fed the 12 volts section with
the 10 volts supply, would this drop of 2 volts cause a major drop in the audio
out section?
Mathew
Matt, no it is not worth the trouble. Just feed only the 10 volt section.
That will disable the audio. The 12 volts
, November 25, 2004 1:43
PM
Subject: Re: [Repeater-Builder] GE MASTR
ER41 Receiver Low Audio Output
Ok, brings up a good question, I fed the 12 volts section
with the 10 volts supply, would this drop of 2 volts cause a major drop in the
audio out section?
Mathew
on 10 volts
- Original Message -
From:
Mathew
Quaife
To: Repeater-Builder@yahoogroups.com
Sent: Thursday, November 25, 2004 1:43
PM
Subject: Re: [Repeater-Builder] GE
MASTR ER41 Receiver Low Audio Output
Ok, brings up a good
I am working on a Mastr ER41 receiver which has low audio output.
WOndered if anyone has run accross this before and where to look. I
have not done any trouble shooting at this point, but thought by
chance if is was a common problem someone could point me in the
right direction. Thanks.
Matt, it is likely the audio output transistor. ER41 comes in two versions.
One has about 2 watts of audio from one transistor. The other has two
transistors and about 10 watts out. In both cases the transistors are mounted
underneath the receiver on a tab on the heatsink. If yours has
Ok found all of that, this is the E version. I checked
the voltage on the transitor, its about 1/2 of what it should be. I just
wonder if this low audio will hamper the use of it any in the repeater
situation. The sensitivity of the receiver is excellent, at .17 Uv at 12
DB. I am using
Matt, no it is not worth the trouble. Just feed only the 10 volt section.
That will disable the audio. The 12 volts is only used for audio out. Dave
Dave BaughnDirector of EngineeringThe University of
AlabamaCenter for Public Television and RadioBox 870150Tuscaloosa,
Alabama
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