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  Topic: Shunt Questions
Eric Page

Replies: 2
Views: 12

PostForum: AeroElectric-List   Posted: Mon May 25, 2020 10:44 am   Subject: Shunt Questions
Gents,


Another good option is Allegro MicroSystems' line of Hall effect sensors. You can get them from all of the usual suspects on eBay, Amazon, AliExpress, etc., mounted on a small PCB. You j ...
  Topic: Bose Headset Replacement Plug
Eric Page

Replies: 13
Views: 324

PostForum: AeroElectric-List   Posted: Tue Apr 21, 2020 10:38 am   Subject: Bose Headset Replacement Plug
Right after posting that last suggestion, I opened the weekly email from Kitplanes magazine and found this article about repairing the cable on Bose headsets!


[url=https://www.kitplanes.com/crimp ...
  Topic: Bose Headset Replacement Plug
Eric Page

Replies: 13
Views: 324

PostForum: AeroElectric-List   Posted: Tue Apr 21, 2020 10:36 am   Subject: Bose Headset Replacement Plug
Red (positive) and black (ground) will almost certainly be power to the headset electronics. White, blue and green are probably left, right and ground for audio. The correlation of those colors is a ...
  Topic: New role for the E-Bus?
Eric Page

Replies: 82
Views: 3168

PostForum: AeroElectric-List   Posted: Tue Apr 14, 2020 3:52 pm   Subject: Re: New role for the E-Bus?
Bob,

I like these architectures a lot, and I think they'd work very well in the day/night VFR Kitfox I plan to build, hopefully one day soon. They're easy to understand, which would make them easy ...
  Topic: Charge Pump
Eric Page

Replies: 15
Views: 563

PostForum: AeroElectric-List   Posted: Thu Feb 06, 2020 2:25 pm   Subject: Re: Charge Pump
But as a die-hard electro-geek I'm still interested in a charge-pump circuit & cap sizes.

You'll be hard-pressed to find any switched-capacitor charge pump that will work at those current level ...
  Topic: Charge Pump
Eric Page

Replies: 15
Views: 563

PostForum: AeroElectric-List   Posted: Thu Feb 06, 2020 1:41 pm   Subject: Charge Pump
Jeff,


Aircraft Spruce has brand new comm radios from Dynon, Flightline, Garmin, ICOM, MGL and Microair, all for significantly less than the $1,500 you quoted for a used 28V King. Using one of th ...
  Topic: portable oscilloscope recommendations?
Eric Page

Replies: 11
Views: 457

PostForum: AeroElectric-List   Posted: Wed Feb 05, 2020 7:24 pm   Subject: Re: portable oscilloscope recommendations?
If you truly just want to see the presence or absence of a signal, one of the cheap 1-channel Chinese scopes work pretty well. I have one of these...

http://www.ebay.com/itm/163807642144

...and ...
  Topic: David Clark Stereo wiring
Eric Page

Replies: 9
Views: 636

PostForum: AeroElectric-List   Posted: Tue Jan 14, 2020 12:01 pm   Subject: David Clark Stereo wiring
Sorry about that, John. When you wrote "small diameter plug" and "two rings," I thought you were talking about the mic plug. The industry standard mic plug is a 4-conductor TRRS ...
  Topic: David Clark Stereo wiring
Eric Page

Replies: 9
Views: 636

PostForum: AeroElectric-List   Posted: Tue Jan 14, 2020 9:08 am   Subject: David Clark Stereo wiring
See:



Hi Guys

Where can I find the wiring diagram for a DC stereo headset, the small dia. plug has tip, two rings and the barrel, I have the corresponding panel socket (three contacts plus ba ...
  Topic: Not receiving e-mail
Eric Page

Replies: 1
Views: 278

PostForum: AeroElectric-List   Posted: Fri Jan 10, 2020 10:54 am   Subject: Not receiving e-mail
Here’s a perfect example of the problem. The message below, which Bob sent on the 8th, arrived to my inbox twice on that day. This morning — two days later — it arrived again.

I don’t kno ...
  Topic: Not receiving e-mail
Eric Page

Replies: 1
Views: 278

PostForum: AeroElectric-List   Posted: Wed Jan 08, 2020 9:36 am   Subject: Not receiving e-mail
I frequently get two copies of emails from the forum, and I know Yahoo isn’t creating duplicates of only Matronics emails but no others. Sometimes the duplicates are separated by minutes, sometimes ...
  Topic: Interesting King Air Complete Electrical Failure
Eric Page

Replies: 1
Views: 291

PostForum: AeroElectric-List   Posted: Wed Jan 01, 2020 4:36 pm   Subject: Interesting King Air Complete Electrical Failure
On Wednesday, January 1, 2020, 03:32:26 PM PST, Robert L. Nuckolls, III wrote:




If the crew did mis-position switches and ran their battery down, it stands to reason that they ...
  Topic: draft schematic attached
Eric Page

Replies: 13
Views: 1180

PostForum: AeroElectric-List   Posted: Mon Nov 18, 2019 10:02 am   Subject: draft schematic attached
Charlie,


PDF has become the de facto standard for online document transfer. Everyone uses it because *any* software package can "print" to a PDF engine to create it, and it solves the ...
  Topic: LEDs light mystery
Eric Page

Replies: 22
Views: 1467

PostForum: AeroElectric-List   Posted: Sun Nov 10, 2019 12:39 pm   Subject: LEDs light mystery

Eric, I drew the circuit as I intended...

OK Joe, I see my error now. I misinterpreted your sentence about changing the logic of the EFIS input. My brain read that as changing it from a switch ...
  Topic: LEDs light mystery
Eric Page

Replies: 22
Views: 1467

PostForum: AeroElectric-List   Posted: Sun Nov 10, 2019 8:22 am   Subject: LEDs light mystery
Joe, check your diagram again. In option two, it looks like you still changed the switch and forgot to swap the circuit polarity; it shows a SPDT, and it's still switching the EFIS input to ground.
...
  Topic: AeroElectric-List: Using a BNC “T”
Eric Page

Replies: 4
Views: 406

PostForum: AeroElectric-List   Posted: Wed Nov 06, 2019 9:14 pm   Subject: AeroElectric-List: Using a BNC “T”
On Nov 6, 2019, at 4:23 PM, Carlos Trigo <trigo@mail.telepac.pt (I have just installed a 2nd Comm antenna in my aircraft...






Carlos, the short answer is no. The extra length of open-en ...
  Topic: AeroElectric-List: Re: BNC connectors – Tool recommen
Eric Page

Replies: 2
Views: 603

PostForum: AeroElectric-List   Posted: Fri Aug 23, 2019 10:26 am   Subject: AeroElectric-List: Re: BNC connectors – Tool recommen
He's in the UK. The item numbers he posted don't work here in the Colonies. See:


[url=https://preview.tinyurl.com/y2z3ydo8]https://preview.tinyurl.com/y2z3ydo8


...and...




[url=http ...
  Topic: Plug/connector question
Eric Page

Replies: 3
Views: 523

PostForum: AeroElectric-List   Posted: Mon Aug 12, 2019 8:47 am   Subject: Re: Plug/connector question
Trailer light connector
Anderson Powerpole
TE Connectivity/AMP MATE-N-LOK
Delphi Weather-Pack
  Topic: insulating boots for contactors
Eric Page

Replies: 3
Views: 650

PostForum: AeroElectric-List   Posted: Mon Jul 01, 2019 11:17 am   Subject: insulating boots for contactors
I don't know about "best," but self-amalgamating silicone tape makes a good insulator for pretty much any size or shape terminal. It's available on eBay for cheap, or under the trade name & ...
  Topic: Lacing two cores of 22awg
Eric Page

Replies: 5
Views: 697

PostForum: AeroElectric-List   Posted: Wed Mar 27, 2019 3:51 pm   Subject: Lacing two cores of 22awg
Try putting the search term “wire wrap braid” into eBay. The stuff comes in myriad colors and diameters at minimal cost.

Eric


On Mar 27, 2019, at 16:25, Alec Myers <alec@alecmyers.com ...
 
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