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nuckollsr
Joined: 24 Mar 2009
Posts: 95
Location: Medicine Lodge, KS
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 Posted: Sat Nov 26, 2016 9:35 am Post subject: Audio Isolation Amplifier Boards |
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I've had some requests for the bare etched circuit board called out in the DIY amplifier project featured at http://tinyurl.com/hn28p2q
Unfortunately, there is a minimum quantity for fabricating these. If I could sell three more boards at $25 each postage paid, I would be wiling to bring another batch of these in house.
This was probably the most successful DIY project on the AeroElectric website. I think we sold about 80 of those boards over the years.
Bob . . .
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art(at)zemon.name
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| Posted: Sat Nov 26, 2016 1:11 pm Post subject: Audio Isolation Amplifier Boards |
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I'm dim. What is an Audio Isolation Amplifier used for? Which is oblique way of asking, do I need one for my plane?
  -- Art Z.
--
https://CheerfulCurmudgeon.com/"If I am not for myself, who is for me? And if I am only for myself, what am I? And if not now, when?" Hillel
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ceengland7(at)gmail.com
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| Posted: Sat Nov 26, 2016 2:58 pm Post subject: Audio Isolation Amplifier Boards |
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On 11/26/2016 12:58 PM, Art Zemon wrote:
| Quote: | I'm dim. What is an Audio Isolation Amplifier used for? Which is oblique way of asking, do I need one for my plane?
  -- Art Z.
--
https://CheerfulCurmudgeon.com/ "If I am not for myself, who is for me? And if I am only for myself, what am I? And if not now, when?" Hillel
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Hi Art,
They can have two potential uses. If you open the .pdf file from Bob's link, you'll see multiple sources listed that feed into one destination. This is 'summing' function, that allows combining multiple audio sources while maintaining isolation of the sources from each other. (If you just tie them all together, some or all may not be able to maintain a high enough level and/or have a clean signal. Like tying too many speakers in parallel to your stereo, or worse, tying the left and right outputs together.) With the isolation amp, you hear them all, but they don't interfere with each other.
The second potential function (not implemented with the components shown, but possible), is to supply 'gain', or amplification. Some signal sources may not be loud enough to match up with other sources, or you may need more volume in a loud cockpit than your radios or intercom can supply. With a few tweaks to the circuit, it could supply amplification, as well. (Verify with Bob that he's ok with doing this in this particular circuit.)
Charlie
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cluros(at)gmail.com
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| Posted: Sat Nov 26, 2016 6:20 pm Post subject: Audio Isolation Amplifier Boards |
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I was wondering the same thing so I had a look at the .pdf. As far as I can tell it's a budget way of tying in several radios to your intercom without spending thousands on an audio panel.
Sebastien
On Nov 26, 2016, at 13:58, Art Zemon <art(at)zemon.name (art(at)zemon.name)> wrote:
| Quote: | I'm dim. What is an Audio Isolation Amplifier used for? Which is oblique way of asking, do I need one for my plane?
-- Art Z.
--
https://CheerfulCurmudgeon.com/"If I am not for myself, who is for me? And if I am only for myself, what am I? And if not now, when?" Hillel
|
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email(at)jaredyates.com
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| Posted: Sat Nov 26, 2016 7:52 pm Post subject: Audio Isolation Amplifier Boards |
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I use it to consolidate music, vhf nav audio, and dynon audio output into the single intercom input.
On Nov 26, 2016, at 21:18, Sebastien <cluros(at)gmail.com (cluros(at)gmail.com)> wrote:
| Quote: | I was wondering the same thing so I had a look at the .pdf. As far as I can tell it's a budget way of tying in several radios to your intercom without spending thousands on an audio panel.
Sebastien
On Nov 26, 2016, at 13:58, Art Zemon <art(at)zemon.name (art(at)zemon.name)> wrote:
| Quote: | I'm dim. What is an Audio Isolation Amplifier used for? Which is oblique way of asking, do I need one for my plane?
-- Art Z.
--
https://CheerfulCurmudgeon.com/"If I am not for myself, who is for me? And if I am only for myself, what am I? And if not now, when?" Hillel
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merlewagner2
Joined: 01 Jun 2016
Posts: 18
Location: Spring Hill, FL
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| Posted: Sun Nov 27, 2016 3:58 am Post subject: Re: Audio Isolation Amplifier Boards |
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Bob, you can sign me up for 2 boards.
Merle
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_________________
KC1DNJ
General Radiotelephone
Commercial SEL
A & P
Building scale P51, rebuilding Tailwind W10 |
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Eric M. Jones
Joined: 10 Jan 2006
Posts: 565
Location: Massachusetts
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| Posted: Sun Nov 27, 2016 7:40 am Post subject: Re: Audio Isolation Amplifier Boards |
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Bob,
Did you mean bare (not etched) circuit boards?
If so, a trip to you local PCB fab house will get you a truckload of boards in various thicknesses and single-double side configurations. Free.
Eric
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_________________
Eric M. Jones
www.PerihelionDesign.com
113 Brentwood Drive
Southbridge, MA 01550
(508) 764-2072
emjones(at)charter.net |
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rnjcurtis(at)charter.net
Guest
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| Posted: Sun Nov 27, 2016 8:58 am Post subject: Audio Isolation Amplifier Boards |
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Sent from Mail for Windows 10
From: Eric M. Jones (emjones(at)charter.net)
Sent: Sunday, November 27, 2016 10:43 AM
To: aeroelectric-list(at)matronics.com (aeroelectric-list(at)matronics.com)
Subject: AeroElectric-List: Re: Audio Isolation Amplifier Boards
--> AeroElectric-List message posted by: "Eric M. Jones" <emjones(at)charter.net>
Bob,
Did you mean bare (not etched) circuit boards?
He meant bare boards with no holes or copper.
 You drill your own holes mount the components,
and run wires to complete the circuits.
Be real Eric! You know exactly what Bob meant
Quit trying to stir the pot!
Roger
If so, a trip to you local PCB fab house will get you a truckload of boards in various thicknesses and single-double side configurations.
Eric
--------
Eric M. Jones
www.PerihelionDesign.com
113 Brentwood Drive
Southbridge, MA 01550
(508) 764-2072
emjones(at)charter.net
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David Lewis
Joined: 27 Nov 2016
Posts: 3
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| Posted: Sun Nov 27, 2016 12:56 pm Post subject: Re: Audio Isolation Amplifier Boards |
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Bob . . . I would be interested in purchasing two of these boards as well. Should I go to the web site to place the order or is there a specific email you want us to use for the request?
David Lewis
Burbank, CA
davidlewisstart(at)gmail.com
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nuckolls.bob(at)aeroelect
Guest
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| Posted: Mon Nov 28, 2016 9:13 am Post subject: Audio Isolation Amplifier Boards |
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At 09:40 AM 11/27/2016, you wrote:
| Quote: | --> AeroElectric-List message posted by: "Eric M. Jones" <emjones(at)charter.net>
Bob,
Did you mean bare (not etched) circuit boards?
If so, a trip to you local PCB fab house will get you a truckload of boards in various thicknesses and single-double side configurations.
Eric |
No, our 9009-300-2A etched circuit board is
a component of the DIY audio isolation
amplifier project described in . . .
http://tinyurl.com/ngoo6hc
[img]cid:7.1.0.9.0.20161128110438.05579d20(at)aeroelectric.com.0[/img]
Perhaps the better term is 'unpopulated'. It looks
like this when you're done.
[img]cid:7.1.0.9.0.20161128110438.05579d20(at)aeroelectric.com.1[/img]
Bob . . .
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nuckolls.bob(at)aeroelect
Guest
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| Posted: Mon Nov 28, 2016 9:15 am Post subject: Audio Isolation Amplifier Boards |
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At 08:18 PM 11/26/2016, you wrote:
| Quote: | | I was wondering the same thing so I had a look at the .pdf. As far as I can tell it's a budget way of tying in several radios to your intercom without spending thousands on an audio panel. |
Correct. Notice too on the pictures that
there are gain setting resistors installed
in a socket. For audio sources with no
adjustable output, you can select the
resistor that levels that source with
the rest of your sources.
Bob . . .
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nuckolls.bob(at)aeroelect
Guest
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| Posted: Thu Dec 08, 2016 5:55 pm Post subject: Audio Isolation Amplifier Boards |
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I've had a number of folks express and interst in
acquiring the boards to the DIY audio Isolation
amplifier.
Interested purchases can be made from our
website at:
http://tinyurl.com/cgr42l5
Put your order details in the Commends/Special Rquests
box at the bottom of the form. The boards are $22 ea
plus first class postage of $2.25
I'll plan on ordering boards on Monday . . .
Assembly instructions for this project are available
at:
http://tinyurl.com/ngoo6hc
[img]cid:7.1.0.9.0.20161208145544.068ddb70(at)aeroelectric.com.2[/img]
Perhaps the better term is 'unpopulated'. It looks
like this when you're done.
[img]cid:7.1.0.9.0.20161208145544.068ddb70(at)aeroelectric.com.3[/img]
Bob . . .[url=??.htm] [/url]
No virus found in this message.
Checked by AVG - www.avg.com
11/27/16
| | - The Matronics AeroElectric-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
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nuckolls.bob(at)aeroelect
Guest
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| Posted: Sun Dec 11, 2016 8:53 pm Post subject: Audio Isolation Amplifier Boards |
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--> AeroElectric-List message posted by: "nuckollsr" <bob.nuckolls(at)aeroelectric.com>
I've had some requests for the bare etched circuit board called out in the DIY amplifier project featured at http://tinyurl.com/hn28p2q
Unfortunately, there is a minimum quantity for fabricating these. If I could sell three more boards at $25 each postage paid, I would be wiling to bring another batch of these in house.
This was probably the most successful DIY project on the AeroElectric website. I think we sold about 80 of those boards over the years.
I've placed an order for the boards based
on requests received to date. The boards
are ordered in lots of 6. From the 2
lots just ordered I'll have 4 residual
boards available.
Bob . . .
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nuckolls.bob(at)aeroelect
Guest
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| Posted: Sat Dec 17, 2016 5:44 am Post subject: Audio Isolation Amplifier Boards |
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At 10:47 PM 12/11/2016, you wrote:
| Quote: | --> AeroElectric-List message posted by: "nuckollsr" <bob.nuckolls(at)aeroelectric.com>
I've had some requests for the bare etched circuit board called out in the DIY amplifier project featured at http://tinyurl.com/hn28p2q
|
All boards requested have been shipped and
I'm out of boards.
Bob . . .
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donvansanten(at)gmail.com
Guest
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| Posted: Fri Dec 30, 2016 6:33 pm Post subject: Audio Isolation Amplifier Boards |
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Bob,
Just noticed this. Would this be a good way to connect an xm roady music receiver to my audio panel?
Background, The roady has no volume control and is intended to plug into a cassette player using the supplied adapter. I wired it directly to my Garmin audio panel. It worked fine except The volume was lower than needed. I am changing to a PS Engineering PDA 360XR audio panel that has music input volume controls. I am not sure that the new install will have adequate volume. Any ideas on how to increase the volume?
On Thu, Dec 8, 2016 at 1:00 PM, Robert L. Nuckolls, III <nuckolls.bob(at)aeroelectric.com (nuckolls.bob(at)aeroelectric.com)> wrote:
| Quote: | I've had a number of folks express and interst in
acquiring the boards to the DIY audio Isolation
amplifier.
Interested purchases can be made from our
website at:
http://tinyurl.com/cgr42l5
Put your order details in the Commends/Special Rquests
box at the bottom of the form. The boards are $22 ea
plus first class postage of $2.25
I'll plan on ordering boards on Monday . . .
Assembly instructions for this project are available
at:
http://tinyurl.com/ngoo6hc
[img]cid:7.1.0.9.0.20161208145544.068ddb70(at)aeroelectric.com.2[/img] Â
Perhaps the better term is 'unpopulated'. It looks
like this when you're done.
[img]cid:7.1.0.9.0.20161208145544.068ddb70(at)aeroelectric.com.3[/img] Â
 Bob . . .
No virus found in this message.
Checked by AVG - www.avg.com
11/27/16
 Bob . . .
|
| | - The Matronics AeroElectric-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
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15068 Time(s) |
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donvansanten(at)gmail.com
Guest
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| Posted: Fri Dec 30, 2016 6:43 pm Post subject: Audio Isolation Amplifier Boards |
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Bob,
Just noticed this. Would this be a good way to connect an xm roady music receiver to my audio panel?
Background, The roady has no volume control and is intended to plug into a cassette player using the supplied adapter. I wired it directly to my Garmin audio panel. It worked fine except The volume was lower than needed. I am changing to a PS Engineering PDA 360XR audio panel that has music input volume controls. I am not sure that the new install will have adequate volume. Any ideas on how to increase the volume?
On Fri, Dec 30, 2016 at 6:32 PM, don van santen <donvansanten(at)gmail.com (donvansanten(at)gmail.com)> wrote:
| Quote: | Bob,
Just noticed this. Would this be a good way to connect an xm roady music receiver to my audio panel?
Background, The roady has no volume control and is intended to plug into a cassette player using the supplied adapter. I wired it directly to my Garmin audio panel. It worked fine except The volume was lower than needed. I am changing to a PS Engineering PDA 360XR audio panel that has music input volume controls. I am not sure that the new install will have adequate volume. Any ideas on how to increase the volume?
On Thu, Dec 8, 2016 at 1:00 PM, Robert L. Nuckolls, III <nuckolls.bob(at)aeroelectric.com (nuckolls.bob(at)aeroelectric.com)> wrote:
| Quote: | I've had a number of folks express and interst in
acquiring the boards to the DIY audio Isolation
amplifier.
Interested purchases can be made from our
website at:
http://tinyurl.com/cgr42l5
Put your order details in the Commends/Special Rquests
box at the bottom of the form. The boards are $22 ea
plus first class postage of $2.25
I'll plan on ordering boards on Monday . . .
Assembly instructions for this project are available
at:
http://tinyurl.com/ngoo6hc
[img]cid:7.1.0.9.0.20161208145544.068ddb70(at)aeroelectric.com.2[/img] Â
Perhaps the better term is 'unpopulated'. It looks
like this when you're done.
[img]cid:7.1.0.9.0.20161208145544.068ddb70(at)aeroelectric.com.3[/img] Â
 Bob . . .
No virus found in this message.
Checked by AVG - www.avg.com
11/27/16
 Bob . . .
|
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