---------------------------------------------------------- AeroElectric-List Digest Archive --- Total Messages Posted Tue 08/20/13: 6 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 12:32 AM - Re: AeroElectric-List Digest: 10 Msgs - 08/19/13 (Franz Fux) 2. 02:56 AM - Re: Re: Broadcast Radio Bleedover on Transceiver (Bill Maxwell) 3. 06:21 AM - Re: Broadcast Radio Bleedover on Transceiver (Eric M. Jones) 4. 09:36 AM - Re: High voltage AC and faston (Jeff Luckey) 5. 02:06 PM - Re: High voltage AC and faston (jan) 6. 03:37 PM - Re: Failed brownout battery experiment (user9253) ________________________________ Message 1 _____________________________________ Time: 12:32:20 AM PST US From: "Franz Fux" Subject: AeroElectric-List: Re: AeroElectric-List Digest: 10 Msgs - 08/19/13 unable to respond to any mail until the 20th of August, ________________________________ Message 2 _____________________________________ Time: 02:56:17 AM PST US From: Bill Maxwell Subject: Re: AeroElectric-List: Re: Broadcast Radio Bleedover on Transceiver ________________________________ Message 3 _____________________________________ Time: 06:21:33 AM PST US Subject: AeroElectric-List: Re: Broadcast Radio Bleedover on Transceiver From: "Eric M. Jones" > It has been readily demonstrated that an artfully > crafted 'crystal set' can perform rather well and receive > even overseas short wave broadcasts. The kind of performance > was never demonstrated in the typical crystal set kits and/or > merit badge construction projects....Bob Indeed. In WWI soldiers had no problem building "Trench Radios" out of anything imaginable. A lump of anthracite coal made a dandy detector. Metal sheets between the pages of a book worked well for capacitors. Air-spaced coils were woven like baskets out of any available wire. Wrapping a few nails with the finest enameled wire one could get and stuffing them into a food tin worked for a headphone. Of course they had a) Time and b) Giant spark-gap code transmitters a mile away. They still make good science projects. For high frequencies, joint corrosion is a concern. Surgeons use high-frequency devices to cut and cauterize surgical patients, but the slightest DC component will make the patient's muscles jump. Corroded joints are a frequent problem because the rectify the HF into DC. -------- Eric M. Jones www.PerihelionDesign.com 113 Brentwood Drive Southbridge, MA 01550 (508) 764-2072 emjones(at)charter.net Read this topic online here: http://forums.matronics.com/viewtopic.php?p=407100#407100 ________________________________ Message 4 _____________________________________ Time: 09:36:13 AM PST US From: Jeff Luckey Subject: Re: AeroElectric-List: High voltage AC and faston =0A"..I was told=0Athat using Faston for AC application was not a good thin g due to the line=0Afrequency .. i.e. alternating current causing =9C vibration=9D in the=0Aconnector .."=0A=0AI don't know about that one. ..=C2- =0A=0A=0AI've never heard of that and it sounds=0Alike an "old wiv es tale".=C2- =0A=0A=0AThe Fast-on connectors are used =0A=0Aubiquitously in all kinds of=C2- things =0A=0Alike appliances.=C2- Look inside a=0A refrigerator, washing machine, dryer,=0Afurnace, air conditioner, etc.=C2 - All AC=0Amachines that have a fair amount=0Aof mechanical vibration.=C2 - You will=0Asee lots of Fast-ons.=0A=0A=0AAs you said, stay with high-qu ality=0Aconnectors from T&B or Amp=0A=0Aand crimp properly.=0A=0AI've never worked on 400hz aircraft=0Asystems so I have no direct knowledge=0Aof whet her Fast-ons are used for =0A=0Athat application - but I don't think=0Afreq uency is a factor.=0A=0A=0A=0A=0A________________________________=0A From: jan =0ATo: aeroelectric-list@matronics.com =0ASent: Monday, August 19, 2013 10:54 PM=0ASubject: RE: AeroElectric-List: High vo ltage AC and faston=0A =0A=0A=0A =0AMobile power generators =93 I was told=0Athat using Faston for AC application was not a good thing due to th e line=0Afrequency .. i.e. alternating current causing =9Cvibration =9D in the=0Aconnector ..=C2- I can not see the issue with using a faston connector in this=0Aapplication, providing a quality faston is used =93 Not a poor quality Chinese=0Acopy.=0A=C2-=0AI was wondering if aircraft used them in=0Ahigh voltage AC applications =C2-=0A=C2 -=0A=0A________________________________=0A =0AFrom:owner-aeroelectric-lis t-server@matronics.com=0A[mailto:owner-aeroelectric-list-server@matronics.c om] On Behalf Of Jeff Luckey=0ASent: 20 August 2013 01:47=0ATo: aeroelectri c-list@matronics.com=0ASubject: Re: AeroElectric-List:=0AHigh voltage AC an d faston=0A=C2-=0AYes - they=0Aare acceptable for 120/240 volt applicatio ns.=C2- I think they have a voltage=0Arating of at least 300 volts.=0A=0A What is your high AC voltage mobile application?=0A=C2-=0AJeff Luckey=0A =0A________________________________=0A =0AFrom:jan=0A=0ATo: aeroelectric-list@matronics.com =0ASent: Monday, August 19, 2013 2 :13=0APM=0ASubject: AeroElectric-List: High=0Avoltage AC and faston=0A=C2 -=0AHi Bob ,=0A=C2-=0AWe have a discussion at work regarding the suitab ility of Faston=0Aconnectors used for high voltage AC systems in mobile app lications.?=0A=C2-=0AAll the best=0A=C2-=0AJan=0A=C2-=0A=C2-=0A<= "" font="">=0A=C2-=0A=C2-=0A=C2-=0Ahttp://www.matronics.com/Navigat or?AeroElectric-List=0Ahttp://forums.matronics.com=0Ahttp://www.matronics.c ________________________________ Message 5 _____________________________________ Time: 02:06:53 PM PST US From: jan Subject: RE: AeroElectric-List: High voltage AC and faston Thanks Jeff I totally agree with you .. _____ From: owner-aeroelectric-list-server@matronics.com [mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of Jeff Luckey Sent: 20 August 2013 17:35 Subject: Re: AeroElectric-List: High voltage AC and faston "..I was told that using Faston for AC application was not a good thing due to the line frequency .. i.e. alternating current causing "vibration" in the connector .." I don't know about that one... I've never heard of that and it sounds like an "old wives tale". The Fast-on connectors are used ubiquitously in all kinds of things like appliances. Look inside a refrigerator, washing machine, dryer, furnace, air conditioner, etc. All AC machines that have a fair amount of mechanical vibration. You will see lots of Fast-ons. As you said, stay with high-quality connectors from T&B or Amp and crimp properly. I've never worked on 400hz aircraft systems so I have no direct knowledge of whether Fast-ons are used for that application - but I don't think frequency is a factor. _____ From: jan Sent: Monday, August 19, 2013 10:54 PM Subject: RE: AeroElectric-List: High voltage AC and faston Mobile power generators - I was told that using Faston for AC application was not a good thing due to the line frequency .. i.e. alternating current causing "vibration" in the connector .. I can not see the issue with using a faston connector in this application, providing a quality faston is used - Not a poor quality Chinese copy. I was wondering if aircraft used them in high voltage AC applications ... _____ From: owner-aeroelectric-list-server@matronics.com [mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of Jeff Luckey Sent: 20 August 2013 01:47 Subject: Re: AeroElectric-List: High voltage AC and faston Yes - they are acceptable for 120/240 volt applications. I think they have a voltage rating of at least 300 volts. What is your high AC voltage mobile application? Jeff Luckey _____ From: jan Sent: Monday, August 19, 2013 2:13 PM Subject: AeroElectric-List: High voltage AC and faston Hi Bob , We have a discussion at work regarding the suitability of Faston connectors used for high voltage AC systems in mobile applications.? All the best Jan <="" font=""> http://www.matronics.com/Navigator?AeroElectric-List http://forums.matronics.com http://www.matronics.com/contribution --> http://www.matronics.com/con=============== Forum - Chat, FAQ, http://www.matronics.com/Navigator?AeroElectric-List

Thanks Jeff

 

I totally agree with you ..

 

From: owner-aeroelectric-list-server@matronics.com [mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of Jeff Luckey
Sent: 20 August 2013 17:35
To: aeroelectric-list@matronics.com
Subject: Re: AeroElectric-List: High voltage AC and faston

 


"..I was told that using Faston for AC application was not a good thing due to the line frequency .. i.e. alternating current causing “vibration” in the connector .."

 

I don't know about that one... 

 

I've never heard of that and it sounds

like an "old wives tale". 

 

The Fast-on connectors are used

ubiquitously in all kinds of  things

like appliances.  Look inside a

refrigerator, washing machine, dryer,

furnace, air conditioner, etc.  All AC

machines that have a fair amount

of mechanical vibration.  You will

see lots of Fast-ons.

 

As you said, stay with high-quality

connectors from T&B or Amp

and crimp properly.

 

I've never worked on 400hz aircraft

systems so I have no direct knowledge

of whether Fast-ons are used for

that application - but I don't think

frequency is a factor.

 

 

From: jan <jan@claver.demon.co.uk>
To: aeroelectric-list@matronics.com
Sent: Monday, August 19, 2013 10:54 PM
Subject: RE: AeroElectric-List: High voltage AC and faston

 

Mobile power generators – I was told that using Faston for AC application was not a good thing due to the line frequency .. i.e. alternating current causing “vibration” in the connector ..  I can not see the issue with using a faston connector in this application, providing a quality faston is used – Not a poor quality Chinese copy.

 

I was wondering if aircraft used them in high voltage AC applications …  

 

From: owner-aeroelectric-list-server@matronics.com [mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of Jeff Luckey
Sent: 20 August 2013 01:47
To: aeroelectric-list@matronics.com
Subject: Re: AeroElectric-List: High voltage AC and faston

 

Yes - they are acceptable for 120/240 volt applications.  I think they have a voltage rating of at least 300 volts.

What is your high AC voltage mobile application?

 

Jeff Luckey

From: jan <jan@claver.demon.co.uk>
To: aeroelectric-list@matronics.com
Sent: Monday, August 19, 2013 2:13 PM
Subject: AeroElectric-List: High voltage AC and faston

 

Hi Bob ,

 

We have a discussion at work regarding the suitability of Faston connectors used for high voltage AC systems in mobile applications.?

 

All the best

 

Jan

 

 

<="" font="">

  

  
 
 
http://www.matro
nics.com/Navigator?AeroElectric-List
http://forums.ma
tronics.com
http://www.matro
nics.com/contribution
 
 
  --> 
http://www.matronics.com/con=
===============
 




 

 

http://www
.matronics.com/Navigator?AeroElectric-List
http://forums.matronics.com
http://www.matronics.com/
contribution
 
________________________________ Message 6 _____________________________________ Time: 03:37:24 PM PST US Subject: AeroElectric-List: Re: Failed brownout battery experiment From: "user9253" > The contactor has a pull-in > delay on hte order of 5-10 milliseconds . . . > plenty of time for the dc-dc converter to > wake up. > Thanks Bob -------- Joe Gores Read this topic online here: http://forums.matronics.com/viewtopic.php?p=407131#407131 ------------------------------------------------------------------------------------- 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.