Today's Message Index:
----------------------
1. 05:38 AM - Re: Ebus Diode (James Kilford)
2. 05:38 AM - Re: Ebus Diode (James Kilford)
3. 06:17 AM - Re: Ebus Diode (Henador Titzoff)
4. 09:03 AM - Re: Diagnostic Help Please: Audio is Weak and Scratchy (Jared Yates)
5. 09:28 AM - Re: Ebus Diode (Y! edpav8r)
6. 10:17 AM - Re: Ebus Diode (James Kilford)
7. 11:12 AM - Re: Re: Diagnostic Help Please: Audio is Weak and Scratchy (Robert L. Nuckolls, III)
8. 12:03 PM - Re: Re: Diagnostic Help Please: Audio is Weak and Scratchy (Jared Yates)
9. 12:15 PM - Re: Re: Diagnostic Help Please: Audio is Weak and Scratchy (Jared Yates)
10. 12:23 PM - Re: Re: Diagnostic Help Please: Audio is Weak and Scratchy (Jared Yates)
11. 02:19 PM - Re: Re: Diagnostic Help Please: Audio is Weak and Scratchy (Robert L. Nuckolls, III)
12. 03:00 PM - Re: Re: Diagnostic Help Please: Audio is Weak and Scratchy (Jared Yates)
13. 03:43 PM - Terminals to fit crimper (rayj)
14. 04:42 PM - Re: Re: Diagnostic Help Please: Audio is Weak and Scratchy (Robert L. Nuckolls, III)
Message 1
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Thanks Bob. I'll give it a check with the Eric finger temperature scale too.
On 3 April 2013 19:14, Robert L. Nuckolls, III
<nuckolls.bob@aeroelectric.com> wrote:
> <nuckolls.bob@aeroelectric.com>
>
> At 11:45 AM 4/3/2013, you wrote:
>>
>>
>>
>> Well, that's more tricky. The firewall on this plane (Jodel) is a
>> sandwich of plywood and balsa... so I'm hoping the heatsink will
>> suffice. Worse-case scenario -- I could move the diode to the engine
>> compartment side of the firewall, which is covered with a thin sheet
>> of stainless steel.
>
>
> Hmmmm . . . okay. The heat sink you built
> up from sheet metal will be fine. Don't
> move it to the other side of the firewall.
>
>
> Bob . . .
>
>
Message 2
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Thanks Rick. A handy device and good price too. Not sure it would
make sense getting it across the pond, but I note that similar devices
are available for about the same money. It could be a useful and
interesting investment.
James
On 3 April 2013 16:35, Richard Girard <aslsa.rng@gmail.com> wrote:
> James, One of these should give you some numbers to play with to see how
> well your heatsink is working as you ebuss is loaded up.
>
> http://www.harborfreight.com/infrared-thermometer-with-laser-targeting-non-contact-69465.html
>
> Harbor Freight has a coupon out this month that reduces the price a further
> $10 to $25.99.
> Just a thought
>
> Rick Girard
>
>
> On Wed, Apr 3, 2013 at 9:41 AM, James Kilford <james@etravel.org> wrote:
>>
>> Thanks Bob, I have a theoretical max load of a little under 7A.
>>
>> I agree with your sentiments about the essential bus. I don't anticipate
>> needing it... but it's nice to know that it's there...
>>
>> James
>>
>> On 3 April 2013 14:52, Robert L. Nuckolls, III
>> <nuckolls.bob@aeroelectric.com> wrote:
>>>
>>> <nuckolls.bob@aeroelectric.com>
>>>
>>> At 07:31 AM 4/3/2013, you wrote:
>>>>
>>>> On a related note, is there a way to determine if a heatsink is large
>>>> enough?
>>>>
>>>> I made a heatsink out of some scrap .020" aluminium -- half a dozen
>>>> pieces of varying lengths, stacked and folded up at the ends to form fins.
>>>> I've bolted it under the rectifier with some heatsink paste.
>>>>
>>>>
>>>> Seems like quite a lot of aluminium, and plenty of surface area, but it
>>>> would nice to find a way of evaluating its effectiveness... other than
>>>> waiting for the smell of burning semiconductor...
>>>
>>>
>>> What are your e-bus normal running loads?
>>> I would not expect loads of 10A or less to
>>> call for anything other than to simply mount
>>> the diode a metal surface in the airplane.
>>>
>>> I could run some tests here for higher currents
>>> but keep in mind that the e-bus is for 'endurance'
>>> loads . . . minimal equipment to conduct the
>>> en route phase of flight . . . reduced energy
>>> demands to save the battery for approach to
>>> landing.
>>>
>>> I suggested that big fat diode because of it's
>>> convenience for mounting and wiring. The fact that
>>> it is rated for 25 or 35 amps was in no way intended
>>> to suggest that e-bus loads should/could be
>>> that large.
>>>
>>> The e-bus is a risk reduction feature that is
>>> not likely to be needed more than once over the
>>> lifetime of your airplane. It's a feature that
>>> offers a degrees of System Reliability that
>>> reduces probability that a main alternator failure
>>> will cause you to break a sweat.
>>>
>>> As a renter, I have never enjoyed access to features
>>> that we're building into OBAM aircraft. My personal
>>> endurance package was carried around in the flight
>>> bag. http://tinyurl.com/d5mrjgh
>>>
>>> In fact, I've not turned a VOR receiver on in nearly
>>> 20 years. Not since I discovered the capabilities
>>> of hand-held GPS receivers that were so cheap I could
>>> give them away as door prizes at my seminars! My last
>>> cross-country sojourns were managed with dual
>>> GPS receivers stuck between the glare-shield and
>>> windshield with little wads of windshield sealant.
>>>
>>> It didn't matter if the airplane was a J-3 or A-36,
>>> I was confident in my ability to get from point A to
>>> Point B whether the ship's electrical system was
>>> fully functional or not. That's a high degree of
>>> failure tolerance and system reliability.
>>>
>>>
>>>
>>> Bob . . .
>>>
>>>
>>> ===================================
>>> -
>>> ric-List"
>>> target="_blank">http://www.matronics.com/Navigator?AeroElectric-List
>>> ===================================
>>> MS -
>>> k">http://forums.matronics.com
>>> ===================================
>>> e -
>>> -Matt Dralle, List Admin.
>>> t="_blank">http://www.matronics.com/contribution
>>> ===================================
>>>
>>>
>>>
>>
>>
>>
>> ist" target="_blank">http://www.matronics.com/Navigator?AeroElectric-List
>> tp://forums.matronics.com
>> _blank">http://www.matronics.com/contribution
>>
>
>
> --
> Zulu Delta
> Mk IIIC
> Thanks, Homer GBYM
>
> It isn't necessary to have relatives in Kansas City in order to be unhappy.
> - Groucho Marx
>
>
Message 3
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Everyone,=0A=0AIt isn't given on the website below what this device's tempe
rature range is, so I downloaded the manual.- Here are the specs:=0A*
Measurement Range: -36F to 968F (-38C to 520C)=0A* Accuracy: =B12% above
32F, =B14.5% below 41F=0A=0AIf you have uncalibrated fingers, this may be
the way to go. :)=0A-=0AHenador Titzoff=0A=0A=0A_________________________
_______=0A From: James Kilford <james@etravel.org>=0ATo: aeroelectric-list@
matronics.com =0ASent: Wednesday, April 10, 2013 8:38 AM=0ASubject: Re: Aer
ames Kilford <james@etravel.org>=0A=0AThanks Rick.- A handy device and go
od price too.- Not sure it would=0Amake sense getting it across the pond,
but I note that similar devices=0Aare available for about the same money.
- It could be a useful and=0Ainteresting investment.=0A=0AJames=0A=0A=0A
=0AOn 3 April 2013 16:35, Richard Girard <aslsa.rng@gmail.com> wrote:=0A> J
ames, One of these should give you some numbers to play with to see how=0A>
well your heatsink is working as you ebuss is loaded up.=0A>=0A> http://ww
w.harborfreight.com/infrared-thermometer-with-laser-targeting-non-contact-6
9465.html=0A>=0A> Harbor Freight has a coupon out this month that reduces t
he price a further=0A> $10 to $25.99.=0A> Just a thought=0A>=0A> Rick Girar
d=0A>=0A>=0A> On Wed, Apr 3, 2013 at 9:41 AM, James Kilford <james@etravel.
org> wrote:=0A>>=0A>> Thanks Bob, I have a theoretical max load of a little
under 7A.=0A>>=0A>> I agree with your sentiments about the essential bus.
- I don't anticipate=0A>> needing it... but it's nice to know that it's t
here...=0A>>=0A>> James=0A>>=0A>> On 3 April 2013 14:52, Robert L. Nuckolls
, III=0A>> <nuckolls.bob@aeroelectric.com> wrote:=0A>>>=0A>>> --> AeroElect
ric-List message posted by: "Robert L. Nuckolls, III"=0A>>> <nuckolls.bob@a
eroelectric.com>=0A>>>=0A>>> At 07:31 AM 4/3/2013, you wrote:=0A>>>>=0A>>>>
On a related note, is there a way to determine if a heatsink is large=0A>>
>> enough? =C2=0A>>>>=0A>>>> I made a heatsink out of some scrap .020" alum
inium -- half a dozen=0A>>>> pieces of varying lengths, stacked and folded
up at the ends to form fins. =C2=0A>>>> I've bolted it under the rectifier
with some heatsink paste. =C2=0A>>>>=0A>>>>=0A>>>> Seems like quite a lot o
f aluminium, and plenty of surface area, but it=0A>>>> would nice to find a
way of evaluating its effectiveness... other than=0A>>>> waiting for the s
mell of burning semiconductor...=0A>>>=0A>>>=0A>>>- - What are your e-
bus normal running loads?=0A>>>- - I would not expect loads of 10A or
less to=0A>>>- - call for anything other than to simply mount=0A>>>-
- the diode a metal surface in the airplane.=0A>>>=0A>>>- - I coul
d run some tests here for higher currents=0A>>>- - but keep in mind th
at the e-bus is for 'endurance'=0A>>>- - loads . . . minimal equipment
to conduct the=0A>>>- - en route phase of flight . . . reduced energy
=0A>>>- - demands to save the battery for approach to=0A>>>- - la
nding.=0A>>>=0A>>>- - - I suggested that big fat diode because of it
's=0A>>>- - convenience for mounting and wiring. The fact that=0A>>>
- - it is rated for 25 or 35 amps was in no way intended=0A>>>- -
to suggest that e-bus loads should/could be=0A>>>- - that large.=0A>>
>=0A>>>- - The e-bus is a risk reduction feature that is=0A>>>- -
not likely to be needed more than once over the=0A>>>- - lifetime of
your airplane. It's a feature that=0A>>>- - offers a degrees of System
Reliability that=0A>>>- - reduces probability that a main alternator
failure=0A>>>- - will cause you to break a sweat.=0A>>>=0A>>>- -
As a renter, I have never enjoyed access to features=0A>>>- - that we'
re building into OBAM aircraft. My personal=0A>>>- - endurance package
was carried around in the flight=0A>>>- - bag. http://tinyurl.com/d5m
rjgh=0A>>>=0A>>>- - In fact, I've not turned a VOR receiver on in near
ly=0A>>>- - 20 years. Not since I discovered the capabilities=0A>>>-
- of hand-held GPS receivers that were so cheap I could=0A>>>- - g
ive them away as door prizes at my seminars! My last=0A>>>- - cross-co
untry sojourns were managed with dual=0A>>>- - GPS receivers stuck bet
ween the glare-shield and=0A>>>- - windshield with little wads of wind
shield sealant.=0A>>>=0A>>>- - It didn't matter if the airplane was a
J-3 or A-36,=0A>>>- - I was confident in my ability to get from point
A to=0A>>>- - Point B whether the ship's electrical system was=0A>>>
- - fully functional or not. That's a high degree of=0A>>>- - fai
lure tolerance and system reliability.=0A>>>=0A>>>=0A>>>=0A>>>- Bob . .
.=0A>>>=0A>>>=0A>>> ==================
===================0A>>> -=0A>>> ric-Li
st"=0A>>> target="_blank">http://www.matronics.com/Navigator?AeroElectric
-List=0A>>> =====================
================0A>>> MS -=0A>>> k">http://fo
rums.matronics.com=0A>>> ================
=====================0A>>> e -=0A>>
>- - - - - -Matt Dralle, List Admin.=0A>>> t="_blank">http://ww
w.matronics.com/contribution=0A>>> =============
========================0A>>>
=0A>>>=0A>>>=0A>>=0A>>=0A>>=0A>> ist" target="_blank">http://www.matronic
s.com/Navigator?AeroElectric-List=0A>> tp://forums.matronics.com=0A>> _blan
k">http://www.matronics.com/contribution=0A>>=0A>=0A>=0A>=0A> --=0A> Zulu D
elta=0A> Mk IIIC=0A> Thanks, Homer GBYM=0A>=0A> It isn't necessary to have
relatives in Kansas City in order to be unhappy.=0A>- - Groucho Marx=0A>
=
Message 4
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Subject: | Re: Diagnostic Help Please: Audio is Weak and Scratchy |
I think my audio problems are just about resolved. The only problem left is when
I connect the AEC amp to the intercom inputs, the sound is loud and distorted.
When I connect those outputs directly to the aviation headset jack instead,
it sounds great. Flightcom says that they are expecting the input to be from
something like an mp3 player. I'm taking the output from the AEC's pins 6 and
6. What do I need to put in those lines to bring the AEC's output to something
similar to an mp3 player? Flightcom suggests "dual 10k audio taper" potentiometers
when connecting 8 ohm speaker inputs, but I'm not sure if the output from
the AEC is 8 ohm.
On Apr 5, 2013, at 16:40, Jared Yates <email@jaredyates.com> wrote:
> I've been testing my audio system and have encountered poor
> performance. Does anyone have any suggestions for what to check?
> Here is the problem:
>
> All audio through the headsets is too quiet, and pretty scratchy. This
> applies to radio reception, intercom audio, Dynon voice out, and music
> input. With the intercom volume, headset volume, and individual device
> volume all the way up, the total volume is about where I would want to
> have it with 25% volume selected instead. The issue seems to afflict
> each of the various inputs to a similar degree.
>
> Here is the setup:
> New construction, wired by me (a non-professional, so anything is possible)
> The airframe is a steel tube 4-place fuselage with the mic and audio
> headset jacks isolated from ground, as verified by voltmeter
> continuity checks.
> I used shielded cables to connect the intercom and the mic and stereo
> phone jacks, with the shields connected at intercom end to each other
> and not connected to anything at the jacks.
> I have a self-assembled AEC 9009 Audio Iso Amp handling VHF nav audio
> on one channel, dynon warnings on one channel, left music in on one
> channel, and right music in on one channel, with the 9009's output
> going into the intercom aux input
> The intercom is a Flightcom 403, with the pilot wires going to the
> left front seat, copilot wires to the right front seat, and passenger
> jacks to the back two seats.
> The GNS430 is the only radio, with com audio routed directly to the
> intercom per the intercom directions.
> I'm testing with two known-good David Clark headsets (one stereo, one
> mono) and one brand new Lightspeed headset, all with freshly buffed,
> shiny connectors.
> I'm using battery power only, since the engine is not installed
> presently. I've tried the battery by itself and the battery with the
> charger connected. The voltage range is about 13v to 14v for those
> two cases, but I can't see that changing from one to the other makes
> any difference in the audio system issues.
>
> Here is what I have tried so far with no improvements:
> First, I unplugged aec9009. I lost the channels that run through it,
> but the remaining intercom and VHF com audio were still the same.
> Then I swapped intercom for the bypass plug that I built per the
> intercom manual. this plug is designed to connect the pilot seat
> jacks directly to the radio, so that the airplane can still function
> as a single-place if the intercom is removed entirely. As with the
> 9009, I lose intercom function in this configuration (as I should),
> but the vhf com audio is still weak and scratchy.
> I tried changing the Headsets around in various combinations to
> various seats with no appreciable change.
> I changed out the volume resistors in the AEC9009 to increase the
> volume of those channels, and the volume did go up on the channel in
> question, but the quality really suffered.
> I'm not really sure what to try next. Does anyone have any
> suggestions for what to check?
Message 5
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I bought one of these on eBay not too long ago for even less (delivered) than HF's
price. The one I got has a lighted display, C and F temp displays, on/off
selectable laser aiming spot, display hold button and temp range of -50C to 380C.
It even came with a 9V battery. Works beautifully.
Make and model are "SainSonic SS5380".
This [http://bit.ly/10LgGez ] and this [ http://bit.ly/10V8tnP ] have different markings but appear otherwise identical, right down to the brand of battery.
Eric
On Apr 10, 2013, at 5:38 AM, James Kilford <james@etravel.org> wrote:
> Thanks Rick. A handy device and good price too. Not sure it would make sense
getting it across the pond, but I note that similar devices are available for
about the same money. It could be a useful and interesting investment.
>
> James
>
>
> On 3 April 2013 16:35, Richard Girard <aslsa.rng@gmail.com> wrote:
>> James, One of these should give you some numbers to play with to see how well
your heatsink is working as you ebuss is loaded up.
>>
>> http://www.harborfreight.com/infrared-thermometer-with-laser-targeting-non-contact-69465.html
>>
>> Harbor Freight has a coupon out this month that reduces the price a further
$10 to $25.99.
>> Just a thought
>>
>> Rick Girard
Message 6
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Thanks Eric. Appreciate the update.
On 10 April 2013 17:27, Y! edpav8r <edpav8r@yahoo.com> wrote:
>
> I bought one of these on eBay not too long ago for even less (delivered) than
HF's price. The one I got has a lighted display, C and F temp displays, on/off
selectable laser aiming spot, display hold button and temp range of -50C to
380C. It even came with a 9V battery. Works beautifully.
>
> Make and model are "SainSonic SS5380".
>
> This [http://bit.ly/10LgGez ] and this [ http://bit.ly/10V8tnP ] have different markings but appear otherwise identical, right down to the brand of battery.
>
> Eric
>
>
> On Apr 10, 2013, at 5:38 AM, James Kilford <james@etravel.org> wrote:
>> Thanks Rick. A handy device and good price too. Not sure it would make sense
getting it across the pond, but I note that similar devices are available for
about the same money. It could be a useful and interesting investment.
>>
>> James
>>
>>
>> On 3 April 2013 16:35, Richard Girard <aslsa.rng@gmail.com> wrote:
>>> James, One of these should give you some numbers to play with to see how well
your heatsink is working as you ebuss is loaded up.
>>>
>>> http://www.harborfreight.com/infrared-thermometer-with-laser-targeting-non-contact-69465.html
>>>
>>> Harbor Freight has a coupon out this month that reduces the price a further
$10 to $25.99.
>>> Just a thought
>>>
>>> Rick Girard
>
>
Message 7
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Subject: | Re: Diagnostic Help Please: Audio is Weak and |
Scratchy
At 10:58 AM 4/10/2013, you wrote:
>
>I think my audio problems are just about resolved. The only problem
>left is when I connect the AEC amp to the intercom inputs, the sound
>is loud and distorted. When I connect those outputs directly to the
>aviation headset jack instead, it sounds great. Flightcom says that
>they are expecting the input to be from something like an mp3
>player. I'm taking the output from the AEC's pins 6 and 6. What do
>I need to put in those lines to bring the AEC's output to something
>similar to an mp3 player? Flightcom suggests "dual 10k audio taper"
>potentiometers when connecting 8 ohm speaker inputs, but I'm not
>sure if the output from the AEC is 8 ohm.
Sounds like the gain of the amplifier is
too high. The 150 ohm resistors shown
on each of the audio input lines are
suggested starting points. You can adjust
these for independent control of audio
level from each source.
The gain needs to be controlled at
the input to the amplifier. Adding a
potentiometer after the amplifier would
reduce the intensity of the signal but
it may well still be distorted if the
amplifier is being over driven.
How does the audio sound if you hook
a headset directly to the isolation
amplifier before it goes into the intercom?
Bob . . .
Message 8
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Subject: | Re: Diagnostic Help Please: Audio is Weak and |
Scratchy
It sounds great when I bypass the intercom.
On Apr 10, 2013, at 14:11, "Robert L. Nuckolls, III" <nuckolls.bob@aeroelectric.com>
wrote:
>
> At 10:58 AM 4/10/2013, you wrote:
>>
>> I think my audio problems are just about resolved. The only problem left is
when I connect the AEC amp to the intercom inputs, the sound is loud and distorted.
When I connect those outputs directly to the aviation headset jack instead,
it sounds great. Flightcom says that they are expecting the input to be from
something like an mp3 player. I'm taking the output from the AEC's pins 6
and 6. What do I need to put in those lines to bring the AEC's output to something
similar to an mp3 player? Flightcom suggests "dual 10k audio taper" potentiometers
when connecting 8 ohm speaker inputs, but I'm not sure if the output
from the AEC is 8 ohm.
>
> Sounds like the gain of the amplifier is
> too high. The 150 ohm resistors shown
> on each of the audio input lines are
> suggested starting points. You can adjust
> these for independent control of audio
> level from each source.
>
> The gain needs to be controlled at
> the input to the amplifier. Adding a
> potentiometer after the amplifier would
> reduce the intensity of the signal but
> it may well still be distorted if the
> amplifier is being over driven.
>
> How does the audio sound if you hook
> a headset directly to the isolation
> amplifier before it goes into the intercom?
>
>
>
> Bob . . .
>
>
>
>
Message 9
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Subject: | Re: Diagnostic Help Please: Audio is Weak and |
Scratchy
Also, I just found that the amp ics are getting very hot.
On Apr 10, 2013, at 14:11, "Robert L. Nuckolls, III" <nuckolls.bob@aeroelectric.com>
wrote:
>
> At 10:58 AM 4/10/2013, you wrote:
>>
>> I think my audio problems are just about resolved. The only problem left is
when I connect the AEC amp to the intercom inputs, the sound is loud and distorted.
When I connect those outputs directly to the aviation headset jack instead,
it sounds great. Flightcom says that they are expecting the input to be from
something like an mp3 player. I'm taking the output from the AEC's pins 6
and 6. What do I need to put in those lines to bring the AEC's output to something
similar to an mp3 player? Flightcom suggests "dual 10k audio taper" potentiometers
when connecting 8 ohm speaker inputs, but I'm not sure if the output
from the AEC is 8 ohm.
>
> Sounds like the gain of the amplifier is
> too high. The 150 ohm resistors shown
> on each of the audio input lines are
> suggested starting points. You can adjust
> these for independent control of audio
> level from each source.
>
> The gain needs to be controlled at
> the input to the amplifier. Adding a
> potentiometer after the amplifier would
> reduce the intensity of the signal but
> it may well still be distorted if the
> amplifier is being over driven.
>
> How does the audio sound if you hook
> a headset directly to the isolation
> amplifier before it goes into the intercom?
>
>
>
> Bob . . .
>
>
>
>
Message 10
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Subject: | Re: Diagnostic Help Please: Audio is Weak and |
Scratchy
I think I might have found one problem with some incorrect resistors on the 317.
On Apr 10, 2013, at 14:11, "Robert L. Nuckolls, III" <nuckolls.bob@aeroelectric.com>
wrote:
>
> At 10:58 AM 4/10/2013, you wrote:
>>
>> I think my audio problems are just about resolved. The only problem left is
when I connect the AEC amp to the intercom inputs, the sound is loud and distorted.
When I connect those outputs directly to the aviation headset jack instead,
it sounds great. Flightcom says that they are expecting the input to be from
something like an mp3 player. I'm taking the output from the AEC's pins 6
and 6. What do I need to put in those lines to bring the AEC's output to something
similar to an mp3 player? Flightcom suggests "dual 10k audio taper" potentiometers
when connecting 8 ohm speaker inputs, but I'm not sure if the output
from the AEC is 8 ohm.
>
> Sounds like the gain of the amplifier is
> too high. The 150 ohm resistors shown
> on each of the audio input lines are
> suggested starting points. You can adjust
> these for independent control of audio
> level from each source.
>
> The gain needs to be controlled at
> the input to the amplifier. Adding a
> potentiometer after the amplifier would
> reduce the intensity of the signal but
> it may well still be distorted if the
> amplifier is being over driven.
>
> How does the audio sound if you hook
> a headset directly to the isolation
> amplifier before it goes into the intercom?
>
>
>
> Bob . . .
>
>
>
>
Message 11
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Subject: | Re: Diagnostic Help Please: Audio is Weak and |
Scratchy
At 02:24 PM 4/10/2013, you wrote:
>
>I think I might have found one problem with some incorrect resistors
>on the 317.
oops . . . that could be a problem. After the
correct resistors are in place, measure the
voltage at pin 6 of the amplifier chips
should be about 9v. Voltage on pin 5 should
be about half that.
Bob . . .
Message 12
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Subject: | Re: Diagnostic Help Please: Audio is Weak and |
Scratchy
Thanks Bob, I'll check that and report back. It turns out the resistors were correct,
but my EE friend thought at first that they weren't.
On Apr 10, 2013, at 17:17, "Robert L. Nuckolls, III" <nuckolls.bob@aeroelectric.com>
wrote:
>
> At 02:24 PM 4/10/2013, you wrote:
>>
>> I think I might have found one problem with some incorrect resistors on the
317.
>
> oops . . . that could be a problem. After the
> correct resistors are in place, measure the
> voltage at pin 6 of the amplifier chips
> should be about 9v. Voltage on pin 5 should
> be about half that.
>
>
>
> Bob . . .
>
>
>
>
Message 13
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Subject: | Terminals to fit crimper |
Greetings,
I have a Lawson crimper (95102 old
style)<http://www.lawsonproducts.com/lawson/TermCrimp-Frame/95102.lp?_requestid=146002>
with dies (95103)
<http://www.lawsonproducts.com/lawson/TermCrimp-Die-22-10-AWG/95103.lp>.
The dies have the undesirable .116 space between the crushing surfaces.
I have tried PIDG terminals but the stress relief crimp is unacceptable,
per Bob's information.
Is there a terminal available that can be crimped onto 22ga. tezfel
wireproperly.
I'm not going to have alot of wiring on my aircraft, so I'm looking at
options.
Thanks,
--
Raymond Julian
Kettle River, MN.
"And you know that I could have me a million more friends,
and all I'd have to lose is my point of view." - John Prine
Message 14
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Subject: | Re: Diagnostic Help Please: Audio is Weak |
and Scratchy
At 05:02 PM 4/10/2013, you wrote:
>
>Thanks Bob, I'll check that and report back. It turns out the
>resistors were correct, but my EE friend thought at first that they weren't.
Hmmm . . . the only other thing that
could cause a hot-chip is to have it
soldered in backwards.
Bob . . .
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