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| | |-+  Will an On30 4-4-0 overpower a Micro-Tsunami decoder?
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Author Topic: Will an On30 4-4-0 overpower a Micro-Tsunami decoder?  (Read 2380 times)
traincrazee

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« on: September 04, 2008, 11:52:26 AM »

Will an On30 Bachmann 4-4-0 overpower a Soundtraxx Micro-Tsunami? I have ordered one to add sounds to my 4-4-0, but read elsewhere that one person used a M-T in a Bachmann engine (HO or On30, was not clear) and found that it repeatedly shut-off (overheated) so they resorted to a standard Tsunami instead. Unfortunately, I don't think there's room for a standard Tsunami in the 4-4-0's tender. Thanks for your help.
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finderskeepers

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« Reply #1 on: September 04, 2008, 01:24:54 PM »

It shouldn't be tripping the decoder, I have one in my On30 climax and it doesn't do this. The 750 decoder (micro-tsunami) is rated for a stall current of .75 amp. I can't see a can motor pulling more that half of that under normal operating conditions, so unless your friend has wired multiple high draw lights and a smoke generator to his engine I can't see why his would be tripping.
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traincrazee

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« Reply #2 on: September 04, 2008, 02:29:43 PM »

Thanks for your reply.  Glad to hear one is working well for you.  I'm going to proceed with my plan to put one in my 4-4-0. 
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gnfan

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« Reply #3 on: September 06, 2008, 09:36:17 AM »

Actually there is plenty of room for the larger Tsunami decoder in the 4-4-0 tender. I have installed one. I even left the Bachmann PC board in so I could just plug the decoder in. I swapped out the Tsunami wire harness for a Digitrax, the "DHWHP" Digitrax 9 pin to DCC medium plug long harness (1),  8 pin plug harness.


It is a little crowded but it's not a difficult install.  The tender shell also seals reasonably well so it sounds good also. The Micro-Tsunami would be even easier to fit in the tender.

David
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Steve Magee

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« Reply #4 on: September 06, 2008, 09:41:02 AM »

I have a Micro in my 4-4-0. The advantage of the Micro is that it gives sufficient space in the tender to install a High Bass 1.22" speaker - mmmmm  Smiley But if you want a description of how it was done I shall have to wait until my friend who did the install for me returns from interstate.

Regards

Steve Magee
Newcastle NSW Aust
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traincrazee

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« Reply #5 on: September 08, 2008, 12:31:34 PM »

Got my Micro-T (with its 220 mF "no skips" cap) installed last night.  Let it run awhile.  No overload.   So far so good.  Sounds great too, even with Auto-exhaust.  Now to "tune" some CV's, add a crew, and decals.   There probably is room for a standard T, but the micro made matters even easier.  Just added an 8-pin NMRA plug to it and presto - - a great looking 4-4-0 American with terrrific sound and speed control.
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