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Retirement Sale
Decoder Selection by Loco:
Atlas
 HO-Scale Diesels
DCC Compatibility
 
 

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About Decoder Selection
Some simple things that will help you decide which decoder is right for you, your loco, and your way of operation.
Most newer Atlas locos can use the TCS-A1XX, DH165A0, and NCE-DASR. Most of the older ones can too, but may be better fitted with the DH165K0. The others can be used, but require the installer to add some wires. Even though drop-ins are available for these locos, wired decoders can be used if you prefer lower cost or a decoder with other features. Some locos also have the NMRA plug, as indicated in the listing.
AEM7
TCS-DP5X or any decoder with an NMRA plug on the harness
No recommendations.
C30-7 TCS-DP5X, NCE-D14SRP, D-DH163IP, any decoder with an NMRA plug on the harness, DH165A0, NCE-DASR or TCS-A1XX Throttle Up! TUADA drop-in decoder.

C424 & C425

DH165A0, NCE-DASR, TCS-A1XX or any decoder with an NMRA plug on the harness Throttle Up! TUADA Drop-in decoder.
Dash 8-40BW (12/8/03) This loco is DCC ready, but getting the shell off for the first time will be a chore. It has the traditional six tabs that Atlas incorporates. You'll probably have to use toothpicks to hold some disengaged while undoing others. And, one tab is behind a step-up - making it impossible to reach (chances are you'll wind up breaking it off). Once you get the shell off, I recommend you use your hobby knife to cut a 45° angle on the top corner of the tab that locks onto the chassis hooks. This will make removal of the shell easier the next time.

Any HO-Scale NMRA plug decoder will work, including the direct/integral plug decoders. If using one with wires, we recommend our NMRA "PV" harness.

Sound can be put in it if you're good at making compact speaker enclosures. The TUADG sound unit is a drop-in replacement for the light board that will leave maximum room for the speaker and enclosure.

GP7 (early)

Any wired decoder, DH165A0, NCE-DASR, TCS-A1XX, or TCS-DP5X with the provided socket extension  

GP7 (late)

TCS-DP5X, NCE-D14SRP, DH163IP, any decoder with an NMRA plug on the harness, DH165K0, NCE-DASR
 

GP38 (2001)

Comes decoder-equipped. If you want to replace the decoder, use a DH165A0, NCE-DASR, TCS-A1XX, or any wired decoder that can handle the current.  

GP40 (2001)

If it did not come with a decoder installed, use DH165A0, NCE-DASR, NCE-D14SRP, D-DH163IP, TCS-A1XX, TCS-DP5X, or any decoder with an NMRA plug on the harness. If it came with a decoder, it can be replaced with a DH165A0, TCS-A1XX, NCE-DASR, or any wired decoder that can handle the current. Throttle Up! TUADE2.

RS1 & RS3 (original)

DZ143, DH163K0, TCS-M1, NCE-DASR
Throttle Up! TUKDA Drop-in decoder.

RS1 & RS3 (new 1/99)

DZ143, DH165A0, TCS-M1, TCS-A1XX, NCE-DASR Throttle Up! TUADA Drop-in decoder.

RS11 (pre-1996)

Any wired decoder, DH165K0, NCE-DASR
Throttle Up! TUKDA Drop-in decoder.

RS11 (post-1996)

TCS-DP5X, NCE-D14SRP, NCE-DASR, DH163IP, DH165A0, TCS-A1XX, or any decoder with an NMRA plug on a short harness
Throttle Up! TUKDA Drop-in decoder.

RSD4, RSD5, & RSD12

Any wired decoder, DH165K0, NCE-DASR Throttle Up! TUKDA Drop-in decoder.
S2 DZ143, TCS-M1. An application note discussing decoders for this loco was originally published in our 11/95 newsletter. The application note is free for the asking when you purchase your decoder.
No recommendations.

U23B, U33C & U36C

TCS-DP5X, NCE-D14SRP, NCE-DASR, D-DH163IP, DH165A0, TCS-A1XX, or any decoder with an NMRA plug harness. Throttle Up! TUADG Drop-in decoder.
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