Date   

Re: LS load testing

Jay Scheevel
 

Hi Ryan,

 

Unless you live in Switzerland, I don’t think you need to do load testing. Especially if you are building a Tri-Q2. It is plenty strong and a proven design if you build per plans. If you are in the US, there is no requirement for load testing. The only load testing, that I have seen actual data from, was done at one of the fly-ins in Livermore back in the late 90’s. They loaded a main wing to the point where it deflected 18” and fully recovered without permanent deformation. I am a bit hazy but the load was something like 1200 pounds. The canard is much stronger than the main wing.

 

Cheers,

Jay Scheevel, Tri-Q2 N8WQ, 93 hours

 

From: main@Q-List.groups.io <main@Q-List.groups.io> On Behalf Of ryan goodman via groups.io
Sent: Thursday, June 04, 2020 7:13 PM
To: Q-list IO <main@q-list.groups.io>
Subject: [Q-List] LS load testing

 

Anyone know the accepted load testing parameters for the LS canard on a tri-q/q2?


LS load testing

ryan goodman
 

Anyone know the accepted load testing parameters for the LS canard on a tri-q/q2?


Reminder: Second Q-List Zoom meeting this coming Saturday, June 6 - featuring Sam Hoskins' Q-200

Sam Hoskins
 

We will be having our second Q-List Zoom meeting this coming Saturday, June 6. I will be showing my Q-200, Plastic Explosive, or as my wife calls it, The Fiberglass Bitch. Paul Fisher will be the moderator. Again, this meeting will be recorded and uploaded to YouTube. I think you can see it here: https://www.youtube.com/channel/UCvpREq5dz5VjgcUFVNcoEhQ
 
The Zoom meeting time will be 09:00 Central Daylight Savings Time, USA (GMT-5). The link is at the bottom of this email. I suggest you download the Zoom app before joining the event. https://zoom.us/download
 
After this coming event, we will probably go to a once-a-month presentation. If you are interested in presenting your aircraft or project, shoot me an email off-line at sam.hoskins@... and we’ll put you on the list. BTW, there are four of us who are kind of a Zoom steering committee.
 
We appreciate the positive comments from our first showing with Kevin Bodicker and his beautiful Tri-Q. Several people said they wanted more of a chat format. This session will be similar to the last one, where the moderator feeds the presenter with questions. However, when our 40 minutes is up and the Zoom meeting ends, you may click the same link and reopen the meeting. We’ll un-mute everyone and it will be more of a free for-all chat environment. This session will not be recorded or uploaded.
 
As always, if you have follow-up questions that aren’t answered in the Zoom meeting, start a new topic and ask them here on the Q-List.
 
Do not log in until 08:59.
 
Leave your mic on mute. It is up to you if you want to use your video or not.
 
You may ask Kevin questions via the Zoom chat function. (Do not use your mic). You will send them to me, then I’ll pass on to Kevin. For more info: https://support.zoom.us/hc/en-us/articles/203650445-In-Meeting-Chat
 
Zoom automatically stops the meeting after 40 minutes have elapsed
 
Paul Fisher is inviting you to a scheduled Zoom meeting.
 
Topic: 2nd Q-List Zoom Meeting - featuring Sam Hoskins(GMT-5)
Time: Jun 6, 2020 09:00 AM Central Time (US and Canada) 
 
Join Zoom Meeting
https://us04web.zoom.us/j/71085501918?pwd=Y3ZqT1dwNkRpd3hTSnVUZ1NWelBHdz09
 
Meeting ID: 710 8550 1918
Password: 2XtWnr


Tom Moore out of Frisco?

Corbin
 

Tom -  are you in this group and still around the Frisco area?  Back in 2009, you  did a writeup regarding wheel bearings and an issue that ended up being in the axle.   Wanted to  pick your brain.

If Tom is not in the group, does anyone have contact with him?

Corbin 

--

Corbin 
N33QR


Re: Second Q-List Zoom meeting this coming Saturday, June 6 - featuring Sam Hoskins' Q-200

Adam hied
 

Just thought I’d chime in. Facebook messenger is free and can have up to 50 people in the video chat. No time limit on calls and you don’t need a Facebook account.


On May 31, 2020, at 9:03 PM, Dave Dugas via groups.io <davedq2@...> wrote:

I still have the original mag, just had to change the plug wires.


On Sun, May 31, 2020 at 8:59 PM, John Hoxie via groups.io
<hoxdesigns@...> wrote:
Thanx Dave. What other things, like the magnetos.


On Sun, May 31, 2020 at 3:34 PM, Dave Dugas via groups.io
<davedq2@...> wrote:
John
If you still have the original heads consider changing over to automotive plugs. The newer heads will be a big improvement.
Dave D


On Sun, May 31, 2020 at 4:48 PM, John Hoxie via groups.io
<hoxdesigns@...> wrote:
Just a quick note,
My local EAA chapter tech stopped by my hangar Thursday. He is an expert on VW engines. He's going to inspect my Revmaster after sitting around for 38 years.


Re: Second Q-List Zoom meeting this coming Saturday, June 6 - featuring Sam Hoskins' Q-200

Dave Dugas
 

I still have the original mag, just had to change the plug wires.


On Sun, May 31, 2020 at 8:59 PM, John Hoxie via groups.io
<hoxdesigns@...> wrote:
Thanx Dave. What other things, like the magnetos.


On Sun, May 31, 2020 at 3:34 PM, Dave Dugas via groups.io
<davedq2@...> wrote:
John
If you still have the original heads consider changing over to automotive plugs. The newer heads will be a big improvement.
Dave D


On Sun, May 31, 2020 at 4:48 PM, John Hoxie via groups.io
<hoxdesigns@...> wrote:
Just a quick note,
My local EAA chapter tech stopped by my hangar Thursday. He is an expert on VW engines. He's going to inspect my Revmaster after sitting around for 38 years.


Re: Second Q-List Zoom meeting this coming Saturday, June 6 - featuring Sam Hoskins' Q-200

John Hoxie
 

Thanx Dave. What other things, like the magnetos.


On Sun, May 31, 2020 at 3:34 PM, Dave Dugas via groups.io
<davedq2@...> wrote:
John
If you still have the original heads consider changing over to automotive plugs. The newer heads will be a big improvement.
Dave D


On Sun, May 31, 2020 at 4:48 PM, John Hoxie via groups.io
<hoxdesigns@...> wrote:
Just a quick note,
My local EAA chapter tech stopped by my hangar Thursday. He is an expert on VW engines. He's going to inspect my Revmaster after sitting around for 38 years.


Re: Second Q-List Zoom meeting this coming Saturday, June 6 - featuring Sam Hoskins' Q-200

Dave Dugas
 

John
If you still have the original heads consider changing over to automotive plugs. The newer heads will be a big improvement.
Dave D


On Sun, May 31, 2020 at 4:48 PM, John Hoxie via groups.io
<hoxdesigns@...> wrote:
Just a quick note,
My local EAA chapter tech stopped by my hangar Thursday. He is an expert on VW engines. He's going to inspect my Revmaster after sitting around for 38 years.


Re: Second Q-List Zoom meeting this coming Saturday, June 6 - featuring Sam Hoskins' Q-200

John Hoxie
 

Just a quick note,
My local EAA chapter tech stopped by my hangar Thursday. He is an expert on VW engines. He's going to inspect my Revmaster after sitting around for 38 years.


Re: Second Q-List Zoom meeting this coming Saturday, June 6 - featuring Sam Hoskins' Q-200

Phil Lankford
 

Awesome. Us Californians can sleep in till 7:00 PDT. 


On May 31, 2020, at 9:25 AM, Sam Hoskins <sam.hoskins@...> wrote:



We will be having our second Q-List Zoom meeting this coming Saturday, June 6. I will be showing my Q-200, Plastic Explosive, or as my wife calls it, The Fiberglass Bitch. Paul Fisher will be the moderator. Again, this meeting will be recorded and uploaded to YouTube. I think you can see it here: https://www.youtube.com/channel/UCvpREq5dz5VjgcUFVNcoEhQ

 

The Zoom meeting time will be 09:00 Central Daylight Savings Time, USA (GMT-5). The link is at the bottom of this email. I suggest you download the Zoom app before joining the event. https://zoom.us/download

 

After this coming event, we will probably go to a once-a-month presentation. If you are interested in presenting your aircraft or project, shoot me an email off-line at sam.hoskins@... and we’ll put you on the list. BTW, there are four of us who are kind of a Zoom steering committee.

 

We appreciate the positive comments from our first showing with Kevin Bodicker and his beautiful Tri-Q. Several people said they wanted more of a chat format. This session will be similar to the last one, where the moderator feeds the presenter with questions. However, when our 40 minutes is up and the Zoom meeting ends, you may click the same link and reopen the meeting. We’ll un-mute everyone and it will be more of a free for-all chat environment. This session will not be recorded or uploaded.

 

As always, if you have follow-up questions that aren’t answered in the Zoom meeting, start a new topic and ask them here on the Q-List.

 

  • Do not log in until 08:59.

  • Leave your mic on mute. It is up to you if you want to use your video or not.

  • You may ask Kevin questions via the Zoom chat function. (Do not use your mic). You will send them to me, then I’ll pass on to Kevin. For more info: https://support.zoom.us/hc/en-us/articles/203650445-In-Meeting-Chat

  • Zoom automatically stops the meeting after 40 minutes have elapsed

 

Paul Fisher is inviting you to a scheduled Zoom meeting.

Topic: 2nd Q-List Zoom Meeting - featuring Sam Hoskins(GMT-5)
Time: Jun 6, 2020 09:00 AM Central Time (US and Canada) 

Join Zoom Meeting
https://us04web.zoom.us/j/71085501918?pwd=Y3ZqT1dwNkRpd3hTSnVUZ1NWelBHdz09

Meeting ID: 710 8550 1918
Password: 2XtWnr


Second Q-List Zoom meeting this coming Saturday, June 6 - featuring Sam Hoskins' Q-200

Sam Hoskins
 

We will be having our second Q-List Zoom meeting this coming Saturday, June 6. I will be showing my Q-200, Plastic Explosive, or as my wife calls it, The Fiberglass Bitch. Paul Fisher will be the moderator. Again, this meeting will be recorded and uploaded to YouTube. I think you can see it here: https://www.youtube.com/channel/UCvpREq5dz5VjgcUFVNcoEhQ

 

The Zoom meeting time will be 09:00 Central Daylight Savings Time, USA (GMT-5). The link is at the bottom of this email. I suggest you download the Zoom app before joining the event. https://zoom.us/download

 

After this coming event, we will probably go to a once-a-month presentation. If you are interested in presenting your aircraft or project, shoot me an email off-line at sam.hoskins@... and we’ll put you on the list. BTW, there are four of us who are kind of a Zoom steering committee.

 

We appreciate the positive comments from our first showing with Kevin Bodicker and his beautiful Tri-Q. Several people said they wanted more of a chat format. This session will be similar to the last one, where the moderator feeds the presenter with questions. However, when our 40 minutes is up and the Zoom meeting ends, you may click the same link and reopen the meeting. We’ll un-mute everyone and it will be more of a free for-all chat environment. This session will not be recorded or uploaded.

 

As always, if you have follow-up questions that aren’t answered in the Zoom meeting, start a new topic and ask them here on the Q-List.

 

  • Do not log in until 08:59.

  • Leave your mic on mute. It is up to you if you want to use your video or not.

  • You may ask Kevin questions via the Zoom chat function. (Do not use your mic). You will send them to me, then I’ll pass on to Kevin. For more info: https://support.zoom.us/hc/en-us/articles/203650445-In-Meeting-Chat

  • Zoom automatically stops the meeting after 40 minutes have elapsed

 

Paul Fisher is inviting you to a scheduled Zoom meeting.

Topic: 2nd Q-List Zoom Meeting - featuring Sam Hoskins(GMT-5)
Time: Jun 6, 2020 09:00 AM Central Time (US and Canada) 

Join Zoom Meeting
https://us04web.zoom.us/j/71085501918?pwd=Y3ZqT1dwNkRpd3hTSnVUZ1NWelBHdz09

Meeting ID: 710 8550 1918
Password: 2XtWnr


Re: Firewall electric thru connections

Bill Higdon
 

Not cheap but you can buy Aerospace Bayonet connectors for Thermocouples and pins for several series. Here's 1 examplehttps://www.digikey.com/products/en?keywords=thermocouple%20pins


Re: Firewall electric thru connections

Richard Thomson
 

    Yes, thats why they manufacture diferent material pins to go in them. Have a look in the catalogue.

    Rich T.

On 29/05/2020 04:57, Rik wrote:
Doesn’t everyone know what a canon plug connector is? The thermocouple wires are connected via a cannon plug on every turbine I’ve had along with the tach generator, temp sensor, frag’s etc.. 

You can pick these up used at an aircraft supply place like ET Supply in LA. as well as many other supply places. 


Re: Firewall electric thru connections

Rik
 

It goes without saying, you’ve got to use the correct parts for the job..


Re: Firewall electric thru connections

John Frank
 

Every turbine that I have worked on had cannon plugs or types of and they ALL  had special specific pins for the thermocouple ie allumel and chromel. I know of several instances where incorrect pins were used some worked and one caused a meltdown during start due to the computer not seeing the correct temperature.
Just be sure of what you are doing.


On May 28, 2020, at 11:57 PM, Rik <Info@...> wrote:

Doesn’t everyone know what a canon plug connector is? The thermocouple wires are connected via a cannon plug on every turbine I’ve had along with the tach generator, temp sensor, frag’s etc.. 

You can pick these up used at an aircraft supply place like ET Supply in LA. as well as many other supply places. 


Re: Firewall electric thru connections

Jay Scheevel
 

I think that is what Corbin showed a picture of and the MIL spec part number for. Am I wrong?

Jay

Sent from my Verizon Wireless 4G LTE DROID


Rik <Info@...> wrote:

Doesn’t everyone know what a canon plug connector is? The thermocouple wires are connected via a cannon plug on every turbine I’ve had along with the tach generator, temp sensor, frag’s etc.. 

You can pick these up used at an aircraft supply place like ET Supply in LA. as well as many other supply places. 


Re: Firewall electric thru connections

Rik
 

Doesn’t everyone know what a canon plug connector is? The thermocouple wires are connected via a cannon plug on every turbine I’ve had along with the tach generator, temp sensor, frag’s etc.. 

You can pick these up used at an aircraft supply place like ET Supply in LA. as well as many other supply places. 


Re: Firewall electric thru connections

Bruce Crain
 

wink_smile Ha!  Nope!  All of this came about because Imraan and I were discussing this topic.  Now you know that I was asking for Imraan (although he wasn't really interested) because he didn't want to have all of the opinions show up.  I let him know everyone has opinions just like belly buttons and he didn't want to see the belly buttons.  So here we are....I am not skeered o' belly buttons.  We did get it hashed out tho' didn't we?  Not sure if Imraan is watching but if he is show him your's.  teeth_smile
Bruce Crain


---------- Original Message ----------
From: "Jay Scheevel" <jay@...>
To: <main@Q-List.groups.io>
Subject: Re: [Q-List] Firewall electric thru connections
Date: Thu, 28 May 2020 17:22:19 -0600

Then that instrument is essentially a voltage meter (with a selector switch), that is calibrated to directly read in Degrees/Temperature, the voltage output of the EGT or CHT probe metals’ hot junction (either J or K type thermocouples).  Are you looking to put in a different instrument to read those temps?

 

Cheers,

Jay

 

From: main@Q-List.groups.io <main@Q-List.groups.io> On Behalf Of Bruce Crain
Sent: Thursday, May 28, 2020 5:14 PM
To: main@Q-List.groups.io
Subject: Re: [Q-List] Firewall electric thru connections

 

I suppose it is free standing?  It is fairly old but has a toggle switching between egt/cht and each probe has two designated wires going all the way from the head to the probe.

Bruce

---------- Original Message ----------
From: "Jay Scheevel" <jay@...>
To: main@Q-List.groups.io
Subject: Re: [Q-List] Firewall electric thru connections
Date: Thu, 28 May 2020 16:49:34 -0600

Can you send a picture of your gauge? Is it free standing with only inputs being the two thermocouple wires?

 

Sent from my Verizon Wireless 4G LTE DROID



Bruce Crain <jcrain2@...> wrote:

If the instrument is “amplified signal” such as KN egt/cht gauge will it make a difference?  The material coming out of the KN instrument is the same wire as the probe wires.

Bruce

 

 

On May 28, 2020, at 9:39 AM, Jay Scheevel <jay@...> wrote:

Corrections for connectors of differing metals are difficult to do unless you know the temperatures on both sides of the junction in real time. This is practically impossible, since you would have instrument both sides of the connector with more thermocouples. Any two dissimilar metal junctions respond to temperature with a unique function. If you have, say a copper connector under the firewall, one end of the copper adds a temperature dependent voltage and the other end reduces the voltage same amount, but only if both ends are at the same temperature. So that is the reason for the problem crossing the firewall. The connection calibration at the instrument or engine monitoring box is built in to the software so is predictable and transparent to the user.

 

I am attaching some info on how I did my firewall connectors for EGT and CHT. I have 6 cylinders, so I built up two plugs, each carrying 3 EGT’s and 3 CHT’s, one set on the left and one on the right (see last photo below). The first pic below is on the front of the firewall, right side. This is before I connected the wires into the individual plugs, but you can see the 6 holes for them in the aluminum “container” that I built to contain all 6 individual male plugs. When you disconnect the plug from the firewall, there are 12 prongs! The second pic is on the back side of the firewall. There is no aluminum “container” on this side since they are held down by the two phenolic blocks on either side of the hole. The 6 separate two-prong plugs have a convenient hole in the housing that allowed me to put piece of welding rod through them 3 at a time and gang them together. The ends of the welding rod are clamped to firewall by the phenolic blocks. The black screw heads on the firewall side (first photo) go through the firewall into threaded holes in the phenolic on the back side to secure the plug in place and seal the hole. I am loading the spec sheet for the connectors and some Nuckolls article on thermocouples into the files section, if you want more info.

 

Cheers,

Jay Scheevel, Tri-Q2 N8WQ, 92 hours

<image002.jpg>

<image006.jpg>

<image008.jpg>

From: main@Q-List.groups.io <main@Q-List.groups.io> On Behalf Of Joe Hood
Sent: Thursday, May 28, 2020 6:20 AM
To: main@Q-List.groups.io
Subject: Re: [Q-List] Firewall electric thru connections

 

I used to enjoy wiring up Canon plugs on A-4s. Had no idea on the dissimilar metals and "cold junctions." Can't the instrument be re-calibrated?

 

Found a pretty good primer on thermocouple extensions here (I learn something new every day):

https://www.omega.com/en-us/resources/thermocouple-wire

 

 

 



Re: Firewall electric thru connections

Jay Scheevel
 

Then that instrument is essentially a voltage meter (with a selector switch), that is calibrated to directly read in Degrees/Temperature, the voltage output of the EGT or CHT probe metals’ hot junction (either J or K type thermocouples).  Are you looking to put in a different instrument to read those temps?

 

Cheers,

Jay

 

From: main@Q-List.groups.io <main@Q-List.groups.io> On Behalf Of Bruce Crain
Sent: Thursday, May 28, 2020 5:14 PM
To: main@Q-List.groups.io
Subject: Re: [Q-List] Firewall electric thru connections

 

I suppose it is free standing?  It is fairly old but has a toggle switching between egt/cht and each probe has two designated wires going all the way from the head to the probe.

Bruce

---------- Original Message ----------
From: "Jay Scheevel" <jay@...>
To: main@Q-List.groups.io
Subject: Re: [Q-List] Firewall electric thru connections
Date: Thu, 28 May 2020 16:49:34 -0600

Can you send a picture of your gauge? Is it free standing with only inputs being the two thermocouple wires?

 

Sent from my Verizon Wireless 4G LTE DROID



Bruce Crain <jcrain2@...> wrote:

If the instrument is “amplified signal” such as KN egt/cht gauge will it make a difference?  The material coming out of the KN instrument is the same wire as the probe wires.

Bruce

 

 

On May 28, 2020, at 9:39 AM, Jay Scheevel <jay@...> wrote:

Corrections for connectors of differing metals are difficult to do unless you know the temperatures on both sides of the junction in real time. This is practically impossible, since you would have instrument both sides of the connector with more thermocouples. Any two dissimilar metal junctions respond to temperature with a unique function. If you have, say a copper connector under the firewall, one end of the copper adds a temperature dependent voltage and the other end reduces the voltage same amount, but only if both ends are at the same temperature. So that is the reason for the problem crossing the firewall. The connection calibration at the instrument or engine monitoring box is built in to the software so is predictable and transparent to the user.

 

I am attaching some info on how I did my firewall connectors for EGT and CHT. I have 6 cylinders, so I built up two plugs, each carrying 3 EGT’s and 3 CHT’s, one set on the left and one on the right (see last photo below). The first pic below is on the front of the firewall, right side. This is before I connected the wires into the individual plugs, but you can see the 6 holes for them in the aluminum “container” that I built to contain all 6 individual male plugs. When you disconnect the plug from the firewall, there are 12 prongs! The second pic is on the back side of the firewall. There is no aluminum “container” on this side since they are held down by the two phenolic blocks on either side of the hole. The 6 separate two-prong plugs have a convenient hole in the housing that allowed me to put piece of welding rod through them 3 at a time and gang them together. The ends of the welding rod are clamped to firewall by the phenolic blocks. The black screw heads on the firewall side (first photo) go through the firewall into threaded holes in the phenolic on the back side to secure the plug in place and seal the hole. I am loading the spec sheet for the connectors and some Nuckolls article on thermocouples into the files section, if you want more info.

 

Cheers,

Jay Scheevel, Tri-Q2 N8WQ, 92 hours

<image002.jpg>

<image006.jpg>

<image008.jpg>

From: main@Q-List.groups.io <main@Q-List.groups.io> On Behalf Of Joe Hood
Sent: Thursday, May 28, 2020 6:20 AM
To: main@Q-List.groups.io
Subject: Re: [Q-List] Firewall electric thru connections

 

I used to enjoy wiring up Canon plugs on A-4s. Had no idea on the dissimilar metals and "cold junctions." Can't the instrument be re-calibrated?

 

Found a pretty good primer on thermocouple extensions here (I learn something new every day):

https://www.omega.com/en-us/resources/thermocouple-wire

 

 


Re: Firewall electric thru connections

Bruce Crain
 

I suppose it is free standing?  It is fairly old but has a toggle switching between egt/cht and each probe has two designated wires going all the way from the head to the probe.
Bruce


---------- Original Message ----------
From: "Jay Scheevel" <jay@...>
To: main@Q-List.groups.io
Subject: Re: [Q-List] Firewall electric thru connections
Date: Thu, 28 May 2020 16:49:34 -0600

Can you send a picture of your gauge? Is it free standing with only inputs being the two thermocouple wires?
 
Sent from my Verizon Wireless 4G LTE DROID



Bruce Crain <jcrain2@...> wrote:

If the instrument is “amplified signal” such as KN egt/cht gauge will it make a difference?  The material coming out of the KN instrument is the same wire as the probe wires.

Bruce

 

On May 28, 2020, at 9:39 AM, Jay Scheevel <jay@...> wrote:

Corrections for connectors of differing metals are difficult to do unless you know the temperatures on both sides of the junction in real time. This is practically impossible, since you would have instrument both sides of the connector with more thermocouples. Any two dissimilar metal junctions respond to temperature with a unique function. If you have, say a copper connector under the firewall, one end of the copper adds a temperature dependent voltage and the other end reduces the voltage same amount, but only if both ends are at the same temperature. So that is the reason for the problem crossing the firewall. The connection calibration at the instrument or engine monitoring box is built in to the software so is predictable and transparent to the user.

 

I am attaching some info on how I did my firewall connectors for EGT and CHT. I have 6 cylinders, so I built up two plugs, each carrying 3 EGT’s and 3 CHT’s, one set on the left and one on the right (see last photo below). The first pic below is on the front of the firewall, right side. This is before I connected the wires into the individual plugs, but you can see the 6 holes for them in the aluminum “container” that I built to contain all 6 individual male plugs. When you disconnect the plug from the firewall, there are 12 prongs! The second pic is on the back side of the firewall. There is no aluminum “container” on this side since they are held down by the two phenolic blocks on either side of the hole. The 6 separate two-prong plugs have a convenient hole in the housing that allowed me to put piece of welding rod through them 3 at a time and gang them together. The ends of the welding rod are clamped to firewall by the phenolic blocks. The black screw heads on the firewall side (first photo) go through the firewall into threaded holes in the phenolic on the back side to secure the plug in place and seal the hole. I am loading the spec sheet for the connectors and some Nuckolls article on thermocouples into the files section, if you want more info.

 

Cheers,

Jay Scheevel, Tri-Q2 N8WQ, 92 hours

<image002.jpg>
<image006.jpg>
<image008.jpg>

From: main@Q-List.groups.io <main@Q-List.groups.io> On Behalf Of Joe Hood
Sent: Thursday, May 28, 2020 6:20 AM
To: main@Q-List.groups.io
Subject: Re: [Q-List] Firewall electric thru connections

 

I used to enjoy wiring up Canon plugs on A-4s. Had no idea on the dissimilar metals and "cold junctions." Can't the instrument be re-calibrated?

 

Found a pretty good primer on thermocouple extensions here (I learn something new every day):

https://www.omega.com/en-us/resources/thermocouple-wire