Date   
Re: On board camera

Terry <terryintexas7@...>
 

I use a Mobus mini cam and just record then upload to utube
no transmitting involved

here's a sample
https://www.youtube.com/watch?v=drSCZKt4ORY

I do have a wifi cam but it shows too much interference





-----Original Message-----
From: Federico Carminati federico.carminati@... [WiringForDCC]
To: WiringForDCC
Sent: Wed, Mar 30, 2016 4:04 pm
Subject: [WiringForDCC] On board camera

 
Dear All,
  sorry for the naive question. May be it is impossible / already done / already discussed and so on, but googling around I did not find anything. I would like to put an camera on board my train. The solutions provided usually involve a wifi system and an antenna. The troubles with that are well known, since there is a lot of noise coming from the motor and the range may be poor. I was thinking that the rails are a much better way to transfer the signal, however there is a lot of stuff going on there in a DCC setup to hope that a s-video signal could be transmitted and received as such. What I was wandering is whether it is possible to “filter out” the s-video signal and decode it. Does anybody has anything to say about this? Ideas, comments, suggestions? Thanks and best regards, 

Federico Carminati
Diplomate à Genève
av Ste Cécile, 29
1217 Meyrin
Switzerland/Suisse
Tel: +41797732246
Fax: +41227668505


Re: On board camera

Federico Carminati
 

Wow, this is amazing. Thanks a lot. I am starting benchwork for my first layout since I was 15 (and do.not.ask.me how long ago that was). Can you give me some more details on the camera model? Best,

Federico Carminati
Diplomate à Genève
av Ste Cécile, 29
1217 Meyrin
Switzerland/Suisse
Tel: +41797732246
Fax: +41227668505


On Mar 30, 2016, at 11:14 PM, Terry terryintexas7@... [WiringForDCC] <WiringForDCC@...> wrote:

I use a Mobus mini cam and just record then upload to utube
no transmitting involved

here's a sample
https://www.youtube.com/watch?v=drSCZKt4ORY

I do have a wifi cam but it shows too much interference 





-----Original Message-----
From: Federico Carminati federico.carminati@... [WiringForDCC] <WiringForDCC@...>
To: WiringForDCC <WiringForDCC@...>
Sent: Wed, Mar 30, 2016 4:04 pm
Subject: [WiringForDCC] On board camera

 
Dear All,
  sorry for the naive question. May be it is impossible / already done / already discussed and so on, but googling around I did not find anything. I would like to put an camera on board my train. The solutions provided usually involve a wifi system and an antenna. The troubles with that are well known, since there is a lot of noise coming from the motor and the range may be poor. I was thinking that the rails are a much better way to transfer the signal, however there is a lot of stuff going on there in a DCC setup to hope that a s-video signal could be transmitted and received as such. What I was wandering is whether it is possible to “filter out” the s-video signal and decode it. Does anybody has anything to say about this? Ideas, comments, suggestions? Thanks and best regards, 

Federico Carminati
Diplomate à Genève
av Ste Cécile, 29
1217 Meyrin
Switzerland/Suisse
Tel: +41797732246
Fax: +41227668505




Re: On board camera

Terry <terryintexas7@...>
 

You can buy them for under 100$ about 1/3 the cost of a Go Pro
price depends on the size of the SD card you get
I'd recommend the 32 Gig it will give you approx 90 min recording time


http://www.amazon.com/Mobius-Action-Camera-1080P-Sports/dp/B00DP1WYD2


Here's a review
https://www.youtube.com/watch?v=7wmIyD1fM4M



-----Original Message-----
From: Federico Carminati federico.carminati@... [WiringForDCC] To: WiringForDCC
Sent: Sat, Apr 2, 2016 9:20 am
Subject: Re: [WiringForDCC] On board camera

 
Wow, this is amazing. Thanks a lot. I am starting benchwork for my first layout since I was 15 (and do.not.ask.me how long ago that was). Can you give me some more details on the camera model? Best,

Federico Carminati
Diplomate à Genève
av Ste Cécile, 29
1217 Meyrin
Switzerland/Suisse
Tel: +41797732246
Fax: +41227668505


On Mar 30, 2016, at 11:14 PM, Terry terryintexas7@... [WiringForDCC] <WiringForDCC@...> wrote:

I use a Mobus mini cam and just record then upload to utube
no transmitting involved

here's a sample
https://www.youtube.com/watch?v=drSCZKt4ORY

I do have a wifi cam but it shows too much interference 





-----Original Message-----
From: Federico Carminati federico.carminati@... [WiringForDCC] <WiringForDCC@...>
To: WiringForDCC <WiringForDCC@...>
Sent: Wed, Mar 30, 2016 4:04 pm
Subject: [WiringForDCC] On board camera

 
Dear All,
  sorry for the naive question. May be it is impossible / already done / already discussed and so on, but googling around I did not find anything. I would like to put an camera on board my train. The solutions provided usually involve a wifi system and an antenna. The troubles with that are well known, since there is a lot of noise coming from the motor and the range may be poor. I was thinking that the rails are a much better way to transfer the signal, however there is a lot of stuff going on there in a DCC setup to hope that a s-video signal could be transmitted and received as such. What I was wandering is whether it is possible to “filter out” the s-video signal and decode it. Does anybody has anything to say about this? Ideas, comments, suggestions? Thanks and best regards, 

Federico Carminati
Diplomate à Genève
av Ste Cécile, 29
1217 Meyrin
Switzerland/Suisse
Tel: +41797732246
Fax: +41227668505




Re: Keeping It All Nice Neat And Tidy!!

wrhastings@...
 

I use a Polaroid "Cube"
Polaroid Cube – The New HD Action Camera from Polaroid

You can see some Cube video on my club's Facebook page

Bill Hastings

Re: On board camera

Federico Carminati
 

Thanks a lot. best regards, 

Federico Carminati
Diplomate à Genève
av Ste Cécile, 29
1217 Meyrin
Switzerland/Suisse
Tel: +41797732246
Fax: +41227668505


On Apr 2, 2016, at 4:39 PM, Terry terryintexas7@... [WiringForDCC] <WiringForDCC@...> wrote:


You can buy them for under 100$ about 1/3 the cost of a Go Pro
price depends on the size of the SD card you get
I'd recommend the 32 Gig it will give you approx 90 min recording time


http://www.amazon.com/Mobius-Action-Camera-1080P-Sports/dp/B00DP1WYD2


Here's a review
https://www.youtube.com/watch?v=7wmIyD1fM4M



-----Original Message-----
From: Federico Carminati federico.carminati@... [WiringForDCC] <WiringForDCC@...>
To: WiringForDCC <WiringForDCC@...>
Sent: Sat, Apr 2, 2016 9:20 am
Subject: Re: [WiringForDCC] On board camera

 
Wow, this is amazing. Thanks a lot. I am starting benchwork for my first layout since I was 15 (and do.not.ask.me how long ago that was). Can you give me some more details on the camera model? Best,

Federico Carminati
Diplomate à Genève
av Ste Cécile, 29
1217 Meyrin
Switzerland/Suisse
Tel: +41797732246
Fax: +41227668505


On Mar 30, 2016, at 11:14 PM, Terry terryintexas7@... [WiringForDCC] <WiringForDCC@...> wrote:

I use a Mobus mini cam and just record then upload to utube
no transmitting involved

here's a sample
https://www.youtube.com/watch?v=drSCZKt4ORY

I do have a wifi cam but it shows too much interference 





-----Original Message-----
From: Federico Carminati federico.carminati@... [WiringForDCC] <WiringForDCC@...>
To: WiringForDCC <WiringForDCC@...>
Sent: Wed, Mar 30, 2016 4:04 pm
Subject: [WiringForDCC] On board camera

 
Dear All,
  sorry for the naive question. May be it is impossible / already done / already discussed and so on, but googling around I did not find anything. I would like to put an camera on board my train. The solutions provided usually involve a wifi system and an antenna. The troubles with that are well known, since there is a lot of noise coming from the motor and the range may be poor. I was thinking that the rails are a much better way to transfer the signal, however there is a lot of stuff going on there in a DCC setup to hope that a s-video signal could be transmitted and received as such. What I was wandering is whether it is possible to “filter out” the s-video signal and decode it. Does anybody has anything to say about this? Ideas, comments, suggestions? Thanks and best regards, 

Federico Carminati
Diplomate à Genève
av Ste Cécile, 29
1217 Meyrin
Switzerland/Suisse
Tel: +41797732246
Fax: +41227668505







Re: On board camera

Terry <terryintexas7@...>
 

Happy  to help ~!
Not often a really good product comes along at a good price but this is one~!




-----Original Message-----
From: Federico Carminati federico.carminati@... [WiringForDCC]
To: WiringForDCC
Sent: Mon, Apr 4, 2016 9:26 am
Subject: Re: [WiringForDCC] On board camera

 
Thanks a lot. best regards, 

Federico Carminati
Diplomate à Genève
av Ste Cécile, 29
1217 Meyrin
Switzerland/Suisse
Tel: +41797732246
Fax: +41227668505


On Apr 2, 2016, at 4:39 PM, Terry terryintexas7@... [WiringForDCC] <WiringForDCC@...> wrote:


You can buy them for under 100$ about 1/3 the cost of a Go Pro
price depends on the size of the SD card you get
I'd recommend the 32 Gig it will give you approx 90 min recording time


http://www.amazon.com/Mobius-Action-Camera-1080P-Sports/dp/B00DP1WYD2


Here's a review
https://www.youtube.com/watch?v=7wmIyD1fM4M



-----Original Message-----
From: Federico Carminati federico.carminati@... [WiringForDCC] <WiringForDCC@...>
To: WiringForDCC <WiringForDCC@...>
Sent: Sat, Apr 2, 2016 9:20 am
Subject: Re: [WiringForDCC] On board camera

 
Wow, this is amazing. Thanks a lot. I am starting benchwork for my first layout since I was 15 (and do.not.ask.me how long ago that was). Can you give me some more details on the camera model? Best,

Federico Carminati
Diplomate à Genève
av Ste Cécile, 29
1217 Meyrin
Switzerland/Suisse
Tel: +41797732246
Fax: +41227668505


On Mar 30, 2016, at 11:14 PM, Terry terryintexas7@... [WiringForDCC] <WiringForDCC@...> wrote:

I use a Mobus mini cam and just record then upload to utube
no transmitting involved

here's a sample
https://www.youtube.com/watch?v=drSCZKt4ORY

I do have a wifi cam but it shows too much interference 





-----Original Message-----
From: Federico Carminati federico.carminati@... [WiringForDCC] <WiringForDCC@...>
To: WiringForDCC <WiringForDCC@...>
Sent: Wed, Mar 30, 2016 4:04 pm
Subject: [WiringForDCC] On board camera

 
Dear All,
  sorry for the naive question. May be it is impossible / already done / already discussed and so on, but googling around I did not find anything. I would like to put an camera on board my train. The solutions provided usually involve a wifi system and an antenna. The troubles with that are well known, since there is a lot of noise coming from the motor and the range may be poor. I was thinking that the rails are a much better way to transfer the signal, however there is a lot of stuff going on there in a DCC setup to hope that a s-video signal could be transmitted and received as such. What I was wandering is whether it is possible to “filter out” the s-video signal and decode it. Does anybody has anything to say about this? Ideas, comments, suggestions? Thanks and best regards, 

Federico Carminati
Diplomate à Genève
av Ste Cécile, 29
1217 Meyrin
Switzerland/Suisse
Tel: +41797732246
Fax: +41227668505







Scratch built diamonds

Lee Hanna
 

All, I am referencing David Klemm's scratch built diamonds (http://www.wiringfordcc.com/track_2.htm) he made for his DCC layout.


I fully understand  his diagram, but on our club layout the two tracks that cross are on different power districts.  Will this be a problem in hooking up an auto reverse circuit or a frog juicer?


Thanks much in advance.

Lee


Re: Scratch built diamonds

David Klemm
 

Lee,

I had that as an option my module as well.  I controlled it underneath by the way I hooked up the buss via a terminal strip. 

David Klemm

On Apr 10, 2016, at 20:31, lee.hanna60@... [WiringForDCC] <WiringForDCC@...> wrote:

 

All, I am referencing David Klemm's scratch built diamonds (http://www.wiringfordcc.com/track_2.htm) he made for his DCC layout.


I fully understand  his diagram, but on our club layout the two tracks that cross are on different power districts.  Will this be a problem in hooking up an auto reverse circuit or a frog juicer?


Thanks much in advance.

Lee


Re: Scratch built diamonds

Paul O
 

Lee, why not build your crossover with isolated corners where opposite rails intersect.

No need for a reverser or juicer. No problem with power districts.

Look at the design of an Atlas crossover: http://www.atlasrr.com/Images/Track/Trackphotos/0176.JPG

 

Paul O

 

Sent: Sunday, April 10, 2016 8:20 PM
All, I am referencing David Klemm's scratch built diamonds (http://www.wiringfordcc.com/track_2.htm) he made for his DCC layout.

I fully understand  his diagram, but on our club layout the two tracks that cross are on different power districts.  Will this be a problem in hooking up an auto reverse circuit or a frog juicer?

Thanks much in advance.

Lee

Re: Scratch built diamonds

Bill Aulicino
 

Forgive me folks but that’s not a crossover...that’s a crossing. A crossover requires two parallel tracks and two
turnouts. By the way Peco makes much nicer crossings.
Bill Aulicino
 

Sent: Sunday, April 10, 2016 10:46 PM
Subject: RE: [WiringForDCC] Scratch built diamonds
 
 

Lee, why not build your crossover with isolated corners where opposite rails intersect.

No need for a reverser or juicer. No problem with power districts.

Look at the design of an Atlas crossover: http://www.atlasrr.com/Images/Track/Trackphotos/0176.JPG

Paul O

Sent: Sunday, April 10, 20 16 8:20 PM
All, I am referencing David Klemm's scratch built diamonds (http://www.wiringfordcc.com/track_2.htm) he made for his DCC layout.

I fully understand  his diagram, but on our club layout the two tracks that cross are on different power districts.  Will this be a problem in hooking up an auto reverse circuit or a frog juicer?

Thanks much in advance.

Lee

Re: Scratch built diamonds

Puckdropper
 


Have you considered making the trackwork part of one power district or the other?  Then all you have to do is hook the reverser/juicer up like normal. Even though you've got more entrances and exits to worry about, they're only a worry for autoreversing sections.

Puckdropper

---In wiringfordcc@..., <lee.hanna60@...> wrote :

All, I am referencing David Klemm's scratch built diamonds (http://www.wiringfordcc.com/track_2.htm) he made for his DCC layout.


I fully understand  his diagram, but on our club layout the two tracks that cross are on different power districts.  Will this be a problem in hooking up an auto reverse circuit or a frog juicer?


Thanks much in advance.

Lee


Re: Scratch built diamonds

David Klemm
 

Paul,

The problem with the pre-built crossing is the amount of plastic used to keep the power isolated. In the Wabash/IC crossing that has 5 in a row it amounted to something like 3 inches of dead space in 9 inches. This causes a lot of 4 axle engines to stall.  With hand built the issue goes away. 

David Klemm
6s Plus




On Sun, Apr 10, 2016 at 8:23 PM -0700, "'Bill Aulicino' bill@... [WiringForDCC]" <WiringForDCC@...> wrote:

 

Forgive me folks but that’s not a crossover...that’s a crossing. A crossover requires two parallel tracks and two
turnouts. By the way Peco makes much nicer crossings.
Bill Aulicino
 
Sent: Sunday, April 10, 2016 10:46 PM
Subject: RE: [WiringForDCC] Scratch built diamonds
 
 

Lee, why not build your crossover with isolated corners where opposite rails intersect.

No need for a reverser or juicer. No problem with power districts.

Look at the design of an Atlas crossover: http://www.atlasrr.com/Images/Track/Trackphotos/0176.JPG

Paul O

Sent: Sunday, April 10, 20 16 8:20 PM
All, I am referencing David Klemm's scratch built diamonds (http://www.wiringfordcc.com/track_2.htm) he made for his DCC layout.

I fully understand  his diagram, but on our club layout the two tracks that cross are on different power districts.  Will this be a problem in hooking up an auto reverse circuit or a frog juicer?

Thanks much in advance.

Lee

Re: Scratch built diamonds

Vollrath, Don <dvollrath@...>
 

Lee,

The simple answer is “Yes”. You may have issues with a frog juicer and/or auto-reverser if the entrance and exit paths cross between two different boosters or different circuit breaker limited power districts. Difficult to explain but multiple incident reports of just that. Might have something to do with using single or double or hex juicers, or older units vs newer ‘improved’ designs.

 

There are a few options: 1) use a crossing with a better design that uses smaller dead frogs. 2) Wire the entire crossing from only one power district and a PSX A-R unit powered from that district. Yes, a train traveling in the other path will momentarily connect the two districts together. 3)  Power the frog areas of the crossing via a DPDT relay triggered to select the proper district source and polarity from approaching train (track occupancy) sensors, or train dispatcher controlled permission operation.

 

DonV

 

From: WiringForDCC@... [mailto:WiringForDCC@...]
Sent: Sunday, April 10, 2016 7:20 PM
To: WiringForDCC@...
Subject: [WiringForDCC] Scratch built diamonds

 




All, I am referencing David Klemm's scratch built diamonds (http://www.wiringfordcc.com/track_2.htm) he made for his DCC layout.

 

I fully understand  his diagram, but on our club layout the two tracks that cross are on different power districts.  Will this be a problem in hooking up an auto reverse circuit or a frog juicer?

 

Thanks much in advance.

Lee

 




Re: Scratch built diamonds

David Klemm
 

Lee/Don,

In my diamonds which are 3 x 5 for 15 diamonds I have a 2 inch buffer around them.  I then have a PSX A-R flipping power on the one side of each direction.  The buffer is needed because if an engine is going East and West then an engine cannot be in the buffer zone for the North and South route.  I can't recall a single instance of an issue with an engine coming in from each direction which would have caused the PSX A-R to flip out.

To add to the complexity, I had interchange tracks on 3 of the four sides connecting the two routes.  I had a dedicated PSX A-R for the diamonds.  I had a second PSX A-R that addressed flipping the power on the interchange track that required it.  

David


To: WiringForDCC@...
From: WiringForDCC@...
Date: Mon, 11 Apr 2016 14:39:54 +0000
Subject: RE: [WiringForDCC] Scratch built diamonds

 

Lee,

The simple answer is “Yes”. You may have issues with a frog juicer and/or auto-reverser if the entrance and exit paths cross between two different boosters or different circuit breaker limited power districts. Difficult to explain but multiple incident reports of just that. Might have something to do with using single or double or hex juicers, or older units vs newer ‘improved’ designs.

 

There are a few options: 1) use a crossing with a better design that uses smaller dead frogs. 2) Wire the entire crossing from only one power district and a PSX A-R unit powered from that district. Yes, a train traveling in the other path will momentarily connect the two districts together. 3)  Power the frog areas of the crossing via a DPDT relay triggered to select the proper district source and polarity from approaching train (track occupancy) sensors, or train dispatcher controlled permission operation.

 

DonV

 

From: WiringForDCC@... [mailto:WiringForDCC@...]
Sent: Sunday, April 10, 2016 7:20 PM
To: WiringForDCC@...
Subject: [WiringForDCC] Scratch built diamonds

 




All, I am referencing David Klemm's scratch built diamonds (http://www.wiringfordcc.com/track_2.htm) he made for his DCC layout.
 
I fully understand  his diagram, but on our club layout the two tracks that cross are on different power districts.  Will this be a problem in hooking up an auto reverse circuit or a frog juicer?
 
Thanks much in advance.
Lee
 





Re: Scratch built diamonds

Vollrath, Don <dvollrath@...>
 

David,

You did a hybrid of my 2) and 3) whereas your ‘buffer’ zone isolated the entire crossing and path occupancy permission control is somewhat obvious, even if manual by train engineers. Yes you can power the entire ‘isolated’ crossing via a PSX-AR. However the design of the frogs is still important to avoid dead spots or shorts.

Lee’s questions brought in the possibility of issues of using a frog juicer… a different product than the PSX-AR… or other brand A-R units for that matter… and workability with two separate CB power districts. Either of these have been demonstrated by others to be somewhat problematic depending on choices of other equipment.

 

DonV

 

From: WiringForDCC@... [mailto:WiringForDCC@...]
Sent: Monday, April 11, 2016 9:51 AM
To: WiringForDCC@...
Subject: RE: [WiringForDCC] Scratch built diamonds

 




Lee/Don,

 

In my diamonds which are 3 x 5 for 15 diamonds I have a 2 inch buffer around them.  I then have a PSX A-R flipping power on the one side of each direction.  The buffer is needed because if an engine is going East and West then an engine cannot be in the buffer zone for the North and South route.  I can't recall a single instance of an issue with an engine coming in from each direction which would have caused the PSX A-R to flip out.

 

To add to the complexity, I had interchange tracks on 3 of the four sides connecting the two routes.  I had a dedicated PSX A-R for the diamonds.  I had a second PSX A-R that addressed flipping the power on the interchange track that required it.  

 

David


To: WiringForDCC@...
From: WiringForDCC@...
Date: Mon, 11 Apr 2016 14:39:54 +0000
Subject: RE: [WiringForDCC] Scratch built diamonds

 

 

Lee,

The simple answer is “Yes”. You may have issues with a frog juicer and/or auto-reverser if the entrance and exit paths cross between two different boosters or different circuit breaker limited power districts. Difficult to explain but multiple incident reports of just that. Might have something to do with using single or double or hex juicers, or older units vs newer ‘improved’ designs.

 

There are a few options: 1) use a crossing with a better design that uses smaller dead frogs. 2) Wire the entire crossing from only one power district and a PSX A-R unit powered from that district. Yes, a train traveling in the other path will momentarily connect the two districts together. 3)  Power the frog areas of the crossing via a DPDT relay triggered to select the proper district source and polarity from approaching train (track occupancy) sensors, or train dispatcher controlled permission operation.

 

DonV

 

From: WiringForDCC@... [mailto:WiringForDCC@...]
Sent: Sunday, April 10, 2016 7:20 PM
To: WiringForDCC@...
Subject: [WiringForDCC] Scratch built diamonds

 



All, I am referencing David Klemm's scratch built diamonds (http://www.wiringfordcc.com/track_2.htm) he made for his DCC layout.
 
I fully understand  his diagram, but on our club layout the two tracks that cross are on different power districts.  Will this be a problem in hooking up an auto reverse circuit or a frog juicer?
 
Thanks much in advance.
Lee
 



 




Re: Scratch built diamonds

Paul O
 

David, I understand, however, Lee mentioned only two tracks crossing.

It was just a thought to make things easier for him.

 

Paul O

 

Sent: Monday, April 11, 2016 8:17 AM
Paul,

 

The problem with the pre-built crossing is the amount of plastic used to keep the power isolated. In the Wabash/IC crossing that has 5 in a row it amounted to something like 3 inches of dead space in 9 inches. This causes a lot of 4 axle engines to stall.  With hand built the issue goes away. 

David Klemm
6s Plus

Tortoise power supply

JBJudy
 

I hope this is the right place to ask these.


I am installing 3 (for now) tortoise machines. I have an old Radio Shack Micronta regulated 12v power supply. The label on the back says 13.8 VDC - 2.5A. 


1) Will a voltage above the Tortoise doc stated 12v be an issue? If not.....


2) Will this work - I understand that if I add more Tortoise's I may need a more powerful supply later.


3) I also have 2 old power packs from my days before DCC - but the stated output on one is 12v DC (A meter measured it more like 16v) and another that has 20v DC labeled on the back. So I presumed that they might be too much. 


Thx in advance.


JB Morrow

Re: Tortoise power supply

Richard Gagnon
 

The Tortoise draws about 15 to 18 ma even when holding the points closed.

Rich




On Wednesday, April 13, 2016, 7:47 PM, jbjudy@... [WiringForDCC] wrote:



I hope this is the right place to ask these.


I am installing 3 (for now) tortoise machines. I have an old Radio Shack Micronta regulated 12v power supply. The label on the back says 13.8 VDC - 2.5A. 


1) Will a voltage above the Tortoise doc stated 12v be an issue? If not.....


2) Will this work - I understand that if I add more Tortoise's I may need a more powerful supply later.


3) I also have 2 old power packs from my days before DCC - but the stated output on one is 12v DC (A meter measured it more like 16v) and another that has 20v DC labeled on the back. So I presumed that they might be too much. 


Thx in advance.


JB Morrow



Re: Tortoise power supply

Mark Gurries
 

On Apr 13, 2016, at 4:45 PM, jbjudy@... [WiringForDCC] <WiringForDCC@...> wrote:

I hope this is the right place to ask these.
It is.

I am installing 3 (for now) tortoise machines. I have an old Radio Shack Micronta regulated 12v power supply. The label on the back says 13.8 VDC - 2.5A.

1) Will a voltage above the Tortoise doc stated 12v be an issue?
Unfortunately Circuitron does NOT provide a voltage specification for the Tortoise motor. They simply say 12V generically. But consider the following:

1) The many devices that Circuitron sells (TC-3 and TC-4) to drive the Tortoise are specified to work up to 18VDC. There is no regulator to lower the voltage to the Tortoise.

2) They are designed to work with 12V “train set voltages” which actually represents a very wide/loose 10V to 16V range. 12V is simply the NOMINAL or target voltage. Not a maximum nor minimum.

13.8VDC is only 15% higher voltage than the nominal 12V and will not cause any damage.


2) Will this work - I understand that if I add more Tortoise's I may need a more powerful supply later.
Tortoise consume VERY LITTLE current. As Rich just posted, about 15mA to 18mA stalled (Points closed). Most people simply round the number up to 20mA to make the math easy.

20mA = 0.02 Amps

2.5A / 0.02 Amps = 125.

So your 2.5A 13.8VDC power supply will be able to drive 125 Tortoise machines!!.

3) I also have 2 old power packs from my days before DCC - but the stated output on one is 12v DC (A meter measured it more like 16v)
How old is old? Where did you get them from…a train set. Name and Model Number?

Chances are it is a simple transformer type in which 16VDC is not pure DC (Unfiltered DC). Think of it as a soft 16VDC. Such a 16VDC from a transformer power pack will be OK with a Tortoise. But I would stick with the 13.8V supply.

and another that has 20v DC labeled on the back.
No good.

Best Regards,

Mark Gurries
Electrical Engineer
DCC Website & NMRA DCC Clinics: www.markgurries.com

Re: Tortoise power supply

JBJudy
 

The 20v is a dual throttle at least 50+ years old - HO when I grew up! Will not use it.
The other is maybe only 20yrs old & I'll skip it also.
Sounds like my Radio Shack Micronta is just the ticket.

Thx to all.
JB