berkut13(at)berkut13.com
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 Posted: Thu Feb 15, 2007 12:11 pm Post subject: AeroElectric-List: Radio audio troubles |
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| Quote: | Actually, those "output impedance" values are completely
bogus. See:
http://aeroelectric.com/articles/Rev11/18Audio_R11.pdf
The true output impedance of any of these devices
is considerably lower than the values stated. What
they really mean to say is, "This product will produce
rated output performance when presented with xxx ohms
of LOAD.
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I forwarded this to the office. It'll take a bit to read and absorb it.
| Quote: | If the mental image I have from reading your words is
coincident with your own, then it appears that something
may be amiss in the audio isolation amplifier.
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Amiss?...yup..there isn't one. So, that should be "amiss-ing" 
| Quote: | Try swapping affected radios to different inputs to
the amplifier and see if the symptoms swap with the radios
or stay common to the switches on the amplifier.
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I sent an email with a link to the KA-134 schematic...it's just switches for
these circuits to the "phones output".
-James
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