X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Wed, 15 Apr 2009 18:35:29 -0400 Message-ID: X-Original-Return-Path: Received: from mta21.charter.net ([216.33.127.81] verified) by logan.com (CommuniGate Pro SMTP 5.2.13) with ESMTP id 3581862 for lml@lancaironline.net; Wed, 15 Apr 2009 08:47:55 -0400 Received-SPF: pass receiver=logan.com; client-ip=216.33.127.81; envelope-from=troneill@charter.net Received: from imp09 ([10.20.200.9]) by mta21.charter.net (InterMail vM.7.09.01.00 201-2219-108-20080618) with ESMTP id <20090415124722.IHEY3344.mta21.charter.net@imp09> for ; Wed, 15 Apr 2009 08:47:22 -0400 Received: from axs ([75.132.241.174]) by imp09 with smtp.charter.net id fonM1b00F3mUFT705onMYA; Wed, 15 Apr 2009 08:47:22 -0400 X-Original-Message-ID: From: "terrence o'neill" X-Original-To: "Lancair Mailing List" References: Subject: Re: [LML] Re: spike suppresion diodes X-Original-Date: Wed, 15 Apr 2009 07:47:31 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_003A_01C9BD9E.6EB1FA90" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.5512 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.5579 This is a multi-part message in MIME format. ------=_NextPart_000_003A_01C9BD9E.6EB1FA90 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Bill, Cool! I'm ordering a kit today. Wish I'da known, but will be ready the = next time a solenoid fails. Gene, Will get the plain diode I used info for you at the airport today, in = case you still want it. Terrence N211AL 0 hours, awaiting overhauled fuel injection servo. 235/320 ----- Original Message -----=20 From: Bill=20 To: lml@lancaironline.net=20 Sent: Wednesday, April 15, 2009 06:51 Subject: [LML] Re: spike suppresion diodes Consider these instead of diodes. = http://www.periheliondesign.com/suppressors/SnapJack.pdf Bill Harrelson N5ZQ 320 1,650 hrs N6ZQ IV under construction ----- Original Message -----=20 From: terrence o'neill=20 To: lml@lancaironline.net=20 Sent: Wednesday, April 15, 2009 12:44 AM Subject: [LML] Re: spike suppresion diodes Hi Gene, The post from Scott and the schematic doesn't have the spec for the = diode on it, but I recall talking to a local electronic guru who assured = me that a diode from Radio Shack would work to prevent the high voltage = spikes... but that info is at the airport. The problem I had was because I had wired the landing gear so that I = could pull the breaker for the hydraulic pump, while the master = eminedremained on. The master runs continuous 12v through the = solenoids, which are not continuous duty, and I melted the down = solenoid, while adjusting the gear light switches. That caused me to realize that what Scott said was true.... the only = way to prevent this happening was to wire the solenoids after the big = 50a breaker for the hydraulic motor ... which I did. Thus, as soon as = the pump increases the pressure enough the pressure switches cut off = voltage to the solenoids. I also replaced the melted solenoid. And to obviate the spikes, = wired a diode into the plus side of the solenoid... will check the diode = tomorrow at the airport. Terrence=20 L235/320 N211AL ----- Original Message -----=20 From: genemartin=20 To: lml@lancaironline.net=20 Sent: Tuesday, April 14, 2009 20:06 Subject: [LML] spike suppresion diodes Does anyone have a part# for the Diodes. I was going to place a = order with Mouser but am overwhelmed by the 20 some pages of diodes. Terrence you posted you saved a schematic from Scott K. could you = or Scott post that again, I remember seeing it and thought I saved it = but can't find it . Gene Martin LNC2/320 No virus found in this incoming message Checked by PC Tools AntiVirus (5.0.0.22 - 10.100.057). http://www.pctools.com/free-antivirus/ No virus found in this outgoing message Checked by PC Tools AntiVirus (5.0.0.22 - 10.100.057). http://www.pctools.com/free-antivirus/ ------=_NextPart_000_003A_01C9BD9E.6EB1FA90 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Bill,
 
Cool!  I'm = ordering a kit=20 today. Wish I'da known, but will be ready the next time a solenoid=20 fails.
 
Gene,
Will get the plain = diode I used=20 info for you at the airport today, in case you still want = it.
 
Terrence
N211AL 0 hours, = awaiting=20 overhauled fuel injection servo.
235/320
 
----- Original Message -----
From:=20 Bill =
Sent: Wednesday, April 15, 2009 = 06:51
Subject: [LML] Re: spike = suppresion=20 diodes

Consider these instead of = diodes.  http://= www.periheliondesign.com/suppressors/SnapJack.pdf
 
Bill Harrelson
N5ZQ 320 1,650 hrs
N6ZQ  IV under = construction
 
 
 
 
----- Original Message -----
From:=20 terrence=20 o'neill
Sent: Wednesday, April 15, = 2009 12:44=20 AM
Subject: [LML] Re: spike = suppresion=20 diodes

Hi = Gene,
 
The post from = Scott and the=20 schematic doesn't have the spec for the diode on it, but I recall = talking to=20 a local electronic guru who assured me that a diode from Radio Shack = would=20 work to prevent the high voltage spikes... but that info is at the=20 airport.
The problem I = had was=20 because I had wired the landing gear so that I could pull the = breaker=20 for the hydraulic pump, while the master = eminedremained on.  The=20 master  runs continuous 12v through the solenoids, which are = not=20 continuous duty, and I melted the down solenoid, while adjusting the = gear=20 light switches.
That caused me = to realize=20 that what Scott said was true.... the only way to prevent this = happening was=20 to wire the solenoids after the big 50a breaker for the = hydraulic=20 motor ... which I did.  Thus, as soon as the pump increases the = pressure enough the pressure switches cut off voltage to the=20 solenoids.
I = also replaced the=20 melted solenoid.  And to obviate the spikes, wired a diode into = the=20 plus side of the solenoid... will check the diode  tomorrow at = the=20 airport.
Terrence =
L235/320=20 N211AL
 
----- Original Message ----- =
From:=20 genemartin
Sent: Tuesday, April 14, = 2009=20 20:06
Subject: [LML] spike = suppresion=20 diodes

Does anyone have a part# for the = Diodes. I=20 was going to place a order with Mouser but am overwhelmed by the = 20 some=20 pages of diodes.
 Terrence you posted you = saved a=20 schematic from Scott K. could you or Scott post that again, I = remember seeing it and thought I saved it but can't find it = .
Gene Martin
LNC2/320


No = virus found=20 in this incoming message
Checked by PC Tools AntiVirus (5.0.0.22 -=20 10.100.057).
http://www.pctools.com/fr= ee-antivirus/


No virus found in this outgoing message
Checked by PC Tools AntiVirus (5.0.0.22 - 10.100.057).
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