X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Sat, 16 Jan 2010 08:28:35 -0500 Message-ID: X-Original-Return-Path: Received: from hrndva-omtalb.mail.rr.com ([71.74.56.123] verified) by logan.com (CommuniGate Pro SMTP 5.3.1) with ESMTP id 4082473 for lml@lancaironline.net; Thu, 14 Jan 2010 10:54:33 -0500 Received-SPF: none receiver=logan.com; client-ip=71.74.56.123; envelope-from=Wolfgang@MiCom.net X-Original-Return-Path: X-Authority-Analysis: v=1.0 c=1 a=dOoDZmAWAAAA:8 a=Ia-xEzejAAAA:8 a=IMiaWPU__eOTFF9vXvIA:9 a=DMlnUlq1VOSq6IHgxGFPZE9EEKAA:4 a=f-MNE9I93sYA:10 a=EzXvWhQp4_cA:10 a=ZztMp-UvUtlD4YpPtO4A:9 a=hNPf7KGcGVKwM27pgCwA:7 a=mzEa-BaZ2v5od2KBS38xge91pAwA:4 X-Cloudmark-Score: 0 X-Originating-IP: 74.218.201.50 Received: from [74.218.201.50] ([74.218.201.50:1470] helo=micomxp) by hrndva-oedge03.mail.rr.com (envelope-from ) (ecelerity 2.2.2.39 r()) with ESMTP id 41/47-05182-51E3F4B4; Thu, 14 Jan 2010 15:53:57 +0000 X-Original-Message-ID: <000a01ca9531$c4356450$6401a8c0@micomxp> From: "Wolfgang" X-Original-To: Subject: Re: Do-it-yourself AOA Project X-Original-Date: Thu, 14 Jan 2010 10:53:50 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0007_01CA9507.DB2623E0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.2180 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 This is a multi-part message in MIME format. ------=_NextPart_000_0007_01CA9507.DB2623E0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable It looks like you're not going to let this go. You look and criticize, I look and try to make better. . . . . My change to that circuit WILL make it good. . . . . You're not the only one with an avionics background. Have you ever heard of the term "constructive criticism" ? . . . . or is that not part of your skill set ? With that, I will let this go. Wolfgang -------------------------------------------------------------------------= ------- From: Hamid Wasti =20 Sender: =20 Subject: Re: [LML] Re: Do-it-yourself AOA Project=20 Date: Thu, 14 Jan 2010 08:01:03 -0500=20 To: lml@lancaironline.net=20 =20 =20 =20 Wolfgang wrote: I had not looked at the schematics....... That much was very obvious. With a 100C limit,an ambient of 40C... Let me offer some advice from my years of doing electronics for = airplanes. You are being dangerously optimistic if you think that the = area behind your panel will only go up to 40C. Think 55C, maybe even a = bit higher. A simple solution would be to have the 5V regulator with a heat = sink feed the LED's. . . . . what I /assumed/ in the first place. =20 I like offering a fix rather than just crtiticism. "Fixes" without actually looking at and understanding what you are = fixing, do noting to fix the problem -- they just undermine your = credibility. Regards, Hamid=20 ------=_NextPart_000_0007_01CA9507.DB2623E0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
It looks like you're not going to let = this=20 go.
You look and criticize, I look and try = to make=20 better.
. . . . My change to that = circuit WILL make it=20 good.
. . . . You're not the only one with=20 an avionics background.
 
Have you ever heard of the term = "constructive=20 criticism" ?
. . . . or is that not part of your = skill set=20 ?
With that, I will let this = go.
 
Wolfgang
 

lml@lancaironline.net
From: Hamid Wasti=20 <hwasti@lm50.com>
Sender: <marv@lancaironline.net>
Subject: Re: [LML] Re: Do-it-yourself = AOA=20 Project
Date: Thu, 14 Jan 2010 08:01:03 = -0500
To:
Wolfgang wrote:
I had not looked at the=20 schematics.......
That much was very = obvious.

With a 100C limit,an ambient of=20 40C...
Let me offer some advice from my years = of doing=20 electronics for airplanes. You are being dangerously optimistic if = you=20 think that the area behind your panel will only go up to 40C. = Think 55C,=20 maybe even a bit higher.

 A simple solution would be to have the 5V = regulator=20 with a heat sink feed the LED's. . . . . what I /assumed/ in the = first=20 place.
 
I like offering a fix rather than just=20 crtiticism.
"Fixes" without actually looking = at and=20 understanding what you are fixing, do noting to fix the problem -- = they=20 just undermine your=20 = credibility.

Regards,

Hamid
<= /DIV>
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