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MRC Tech II 1500 dual cab question

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  • Member since
    December 2007
  • From: Delmar, NY
  • 671 posts
Posted by DeadheadGreg on Tuesday, September 2, 2008 3:22 PM

whoops!!!!   hahaha, thanks for pointing that out dude.  it IS the 2600 that I have.  donno why i said the 1500......  

 

anyway, yeah, thats what I have.  Thats great to know that it has 2 separate transformers, because common rail seems to be a lot easier to deal with than 2-rail. 

PHISH REUNION MARCH 6, 7, 8 2009 HAMPTON COLISEUM IN HAMPTON, VA AND I HAVE TICKETS!!!!!! YAAAAAAAAY!!!!!!! [quote user="jkroft"]As long as my ballast is DCC compatible I'm happy![/quote] Tryin' to make a woman that you move.... and I'm sharing in the Weekapaug Groove Wake up to find out that you are the eyes of the world....
  • Member since
    November 2002
  • From: Colorado
  • 3,990 posts
Posted by fwright on Tuesday, September 2, 2008 1:33 PM
 DeadheadGreg wrote:

hey, i was just wondering if anyone here knew whether or not the MRC Tech II 1500 has 2 transformers inside or just 1.  I need to know, because this is my power pack, and I need to know whether or not I can use common rail or 2-rail wiring with it.  If theres only one transformer inside, common rail would create short circuits in the power pack. 

thanks!

Greg

I just took a quick gander at the MRC site to refresh my memory.  The Tech 2 1500 is a single controller with momentum added (comapred to the 1400).  Since the 1500 has only a single controller, it only has a single transformer, too.

The Tech 2 2800 Dual Cab Controller has 2 controls and 2 transformers and advertises itself for common rail wiring.

Nearly all MRC dual cab power packs have/had 2 separate transformers for common rail wiring.  The triple controller had 3 transformers.  This was an advantage of MRC power packs over their cheaper competition at the time. 

As long as each controller has a separate transformer, you can use common rail wiring, regardless of whether the controllers are combined into the same box.  In my case, I have 2 separate power packs, and each has their own transformer inside the case.  I use common rail wiring.  I run a 16 gauge bare braided antenna wire around the underside of the layout as my common connection bus.  All the common rail feeders are connected to this bare wire bus - I use 26 gauge magnet wire (has easily removed varnish for an insulator) for nearly invisible feeders for each section of rail.  At worst case I might double-head a train, and my power packs put out 1.5 amps max before the current limiter comes into play, so my wiring is plenty adequate for the loads I am running.

I suspect you gave either the wrong Tech series or model number.  If you are really looking to hang an independent controller off the fixed DC or AC terminals on a single controller power pack, you aren't going to find one with 2 transformers, regardless of make or model.  You can add the second controller to a single controller power pack, but you can't use common rail wiring.

Fred W

  • Member since
    December 2007
  • From: Delmar, NY
  • 671 posts
Posted by DeadheadGreg on Tuesday, September 2, 2008 12:42 PM
The advantage to having two transformers would be that you could use common rail wiring for block/cab control, because if you only have one transformer, then both cabs are drawing from the same power/polarity source.
PHISH REUNION MARCH 6, 7, 8 2009 HAMPTON COLISEUM IN HAMPTON, VA AND I HAVE TICKETS!!!!!! YAAAAAAAAY!!!!!!! [quote user="jkroft"]As long as my ballast is DCC compatible I'm happy![/quote] Tryin' to make a woman that you move.... and I'm sharing in the Weekapaug Groove Wake up to find out that you are the eyes of the world....
  • Member since
    July 2003
  • From: Sierra Vista, Arizona
  • 13,757 posts
Posted by cacole on Tuesday, September 2, 2008 7:22 AM
I have no experience with one, but would be pretty confident to say that it has one transformer and two controllers.  There would be no need or advantage to have two separate transformers in it.
  • Member since
    December 2007
  • From: Delmar, NY
  • 671 posts
MRC Tech II 1500 dual cab question
Posted by DeadheadGreg on Monday, September 1, 2008 10:56 PM

hey, i was just wondering if anyone here knew whether or not the MRC Tech II 1500 has 2 transformers inside or just 1.  I need to know, because this is my power pack, and I need to know whether or not I can use common rail or 2-rail wiring with it.  If theres only one transformer inside, common rail would create short circuits in the power pack. 

thanks!

PHISH REUNION MARCH 6, 7, 8 2009 HAMPTON COLISEUM IN HAMPTON, VA AND I HAVE TICKETS!!!!!! YAAAAAAAAY!!!!!!! [quote user="jkroft"]As long as my ballast is DCC compatible I'm happy![/quote] Tryin' to make a woman that you move.... and I'm sharing in the Weekapaug Groove Wake up to find out that you are the eyes of the world....

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