---------------------------------------------------------- AeroElectric-List Digest Archive --- Total Messages Posted Sat 03/22/14: 9 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 07:11 AM - Std density D sub pins. (Tim Andres) 2. 09:39 AM - Re: Std density D sub pins. (Robert L. Nuckolls, III) 3. 10:06 AM - Lamar Super-Switch solid state contactor (Robert L. Nuckolls, III) 4. 10:32 AM - Re: Std density D sub pins. (Tim Andres) 5. 10:51 AM - Re: Std density D sub pins. (Bill Allen) 6. 12:20 PM - Re: Std density D sub pins. (donjohnston) 7. 12:22 PM - Re: Std density D sub pins. (donjohnston) 8. 02:33 PM - Re: Std density D sub pins. (Robert L. Nuckolls, III) 9. 02:37 PM - Re: Re: Std density D sub pins. (Robert L. Nuckolls, III) ________________________________ Message 1 _____________________________________ Time: 07:11:32 AM PST US Subject: AeroElectric-List: Std density D sub pins. From: Tim Andres Bob, what is the current rating on the Std density D sub pins? This is re: your avionics ground bus and the 18 gauge com wires going into it. I have the oversize pins that accept 18 awg, but I'm thinking the ~8 amps intermittent load needs to be divided over two pins. Thanks Tim ________________________________ Message 2 _____________________________________ Time: 09:39:59 AM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Std density D sub pins. At 09:10 AM 3/22/2014, you wrote: > >Bob, what is the current rating on the Std density D sub pins? This >is re: your avionics ground bus and the 18 gauge com wires going >into it. I have the oversize pins that accept 18 awg, but I'm >thinking the ~8 amps intermittent load needs to be divided over two pins. >Thanks >Tim Splitting it onto 2 pins with 6", 22AWG ballast pigtails is never wrong . . . but the super-pin might be okay. What accessory are you talking about? Bob . . . ________________________________ Message 3 _____________________________________ Time: 10:06:04 AM PST US From: "Robert L. Nuckolls, III" Subject: AeroElectric-List: Lamar Super-Switch solid state contactor At 11:15 AM 3/22/2014, you wrote: >Bob, >I have been told you have a solid state master relay that will not >get hot like my one amp current relay. Could you please tell me the >part number for the relay. Your book has been a real inspiration. Thank you. Lamar used to manufacture one, Aircraft Spruce used to sell them. I don't find them on either website. I think the product has been pulled. At one time the factory had me on a 'list ' to receive an engineering sample for evaluation . . . but I've never seen one in the 'flesh' . . . What's your application? What are your design goals? Is it just the heat that bothers you? Yes, they are hot to touch but that does not automatically translate into an evil property. The light bulb gets hot too but delivers the advertised performance. Bob . . . ________________________________ Message 4 _____________________________________ Time: 10:32:46 AM PST US From: Tim Andres Subject: Re: AeroElectric-List: Std density D sub pins. This is for a- GTN 650 GPS/NAV/COMM. All the grounds out of that box.=0AT im=0A=0A=0A=0A=0A________________________________=0A From: "Robert L. Nucko lls, III" =0ATo: aeroelectric-list@matronics .com =0ASent: Saturday, March 22, 2014 9:38 AM=0ASubject: Re: AeroElectric- List: Std density D sub pins.=0A =0A=0A--> AeroElectric-List message posted by: "Robert L. Nuckolls, III" =0A=0AAt 09:1 Andres =0A> =0A> Bob, what is the current rating on the Std density D sub pins? This is re: your avionics ground bus and the 1 8 gauge com wires going into it. I have the oversize pins that accept 18 aw g, but I'm thinking the ~8 amps intermittent load needs to be divided over two pins.=0A> Thanks=0A> Tim=0A=0A=0A- Splitting it onto 2 pins with 6", 22AWG=0A- ballast pigtails is never wrong . . .=0A- but the super-pin m ight be okay.=0A=0A- What accessory are you talking about?=0A=0A=0A- Bo ====================== ________________________________ Message 5 _____________________________________ Time: 10:51:17 AM PST US Subject: Re: AeroElectric-List: Std density D sub pins. From: Bill Allen Hi Guys, Good question Tim <> I'm looking at something similar right now Bob; I'm not sure I understand correctly what << with 6", 22AWG ballast pigtails >> means? Can you clarify? regards, Bill Allen On 22 March 2014 17:31, Tim Andres wrote: > This is for a GTN 650 GPS/NAV/COMM. All the grounds out of that box. > Tim > > > ------------------------------ > *From:* "Robert L. Nuckolls, III" > *To:* aeroelectric-list@matronics.com > *Sent:* Saturday, March 22, 2014 9:38 AM > *Subject:* Re: AeroElectric-List: Std density D sub pins. > > nuckolls.bob@aeroelectric.com> > > At 09:10 AM 3/22/2014, you wrote: > tim2542@sbcglobal.net> > > > > Bob, what is the current rating on the Std density D sub pins? This is > re: your avionics ground bus and the 18 gauge com wires going into it. I > have the oversize pins that accept 18 awg, but I'm thinking the ~8 amps > intermittent load needs to be divided over two pins. > > Thanks > > Tim > > > Splitting it onto 2 pins with 6", 22AWG > ballast pigtails is never wrong . . . > but the super-pin might be okay. > > What accessory are you talking about? > > > Bob . . . -Mat============== > > > * > > > * > > ________________________________ Message 6 _____________________________________ Time: 12:20:01 PM PST US Subject: AeroElectric-List: Re: Std density D sub pins. From: "donjohnston" And what is a "super pin"? Read this topic online here: http://forums.matronics.com/viewtopic.php?p=420851#420851 ________________________________ Message 7 _____________________________________ Time: 12:22:17 PM PST US Subject: AeroElectric-List: Re: Std density D sub pins. From: "donjohnston" And what is a "super pin"? Read this topic online here: http://forums.matronics.com/viewtopic.php?p=420852#420852 ________________________________ Message 8 _____________________________________ Time: 02:33:13 PM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Std density D sub pins. At 12:31 PM 3/22/2014, you wrote: >This is for a GTN 650 GPS/NAV/COMM. All the grounds out of that box. >Tim Okay, I'm seeing grounds on P1001, 1004 and 1003 that start out as multiple pins and splice down to single conductors of 18 or 20AWG depending on system voltage for a total of 7 wires. Without conversation with the folks who set it up, the rationale is not known to us. I've seen this 'pin doubling' on a variety of radios over the past 20 years. One thing you could do is run individual 20AWG wires from ALL 7 pins on the radio to independent pins in the ground bus. This would cover a host of rationals from quest for low impedance groung path (shaky), redundancy (a little less shaky) or load sharing in the pins (which is my best guess). I sold this philosophy onto the GQM163 super sonic sea skimmer about 10 years ago. http://tinyurl.com/7h9h76r I think if it were my airplane, I'd go with 7 separate wires in bundle to the ground bus. Bob . . . ________________________________ Message 9 _____________________________________ Time: 02:37:13 PM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Re: Std density D sub pins. At 02:17 PM 3/22/2014, you wrote: > >And what is a "super pin"? Somebody, I think Garmin, spec'd a special pin for d-sub connectors that would accept larger than 20AWG wire. This is extra long such that the crimp happens outside the connector housing. I'm mystified by this product . . . in no way does it improve on the current rating of the individual pin, only the ability to attach wires rated for a lot more current than the pin . . . wouldn't use one myself. Bob . . . ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message aeroelectric-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/AeroElectric-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/aeroelectric-list Browse Digests http://www.matronics.com/digest/aeroelectric-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.