Drop-In - HO Scale

Digitrax DH165A0 DCC Decoder - HO Drop-in AT-Style Board     Features:DH165A0 fits Athearn Genesis, Kato, Stewart, Atlas & Other HO Locomotives. Compatible with Sound Bug Sound Only DecodersDecoder Lock equipped   Series 6 Decoder...

Digitrax DH165K0 DCC Decoder - HO Drop-in AT-Style Board     Features:DH165K0 Fits Kato, Stewart, Atlas & OtherHO Locomotives Compatible with Sound BugDecoder Lock equipped   Series 5 Features Sound Bug Compatible:  Series 5...

Digitrax DH165K1A DCC Decoder - HO Drop-in for Kato     Features: DH165K1A fits many Kato HO Diesel Locomotives. Compatible with Digitrax Sound Bug Decoder Lock equipped   Series 5 Features Sound Bug Compatible:  Series 5 Digitrax...

Digitrax DH165L0 DCC Decoder - HO Drop-in Board for Life-Like     Features:Series 5 Decoder for Proto 2000 Plug ‘N Play Installation Compatible with Sound BugDecoder Lock equipped   Series 5 Features Sound Bug Compatible: ...

Digitrax DH165Q1 DCC Decoder - HO Drop-in Board for QSI-Style Replacement     Features:DH165Q1 fits Atlas, Intermountain, LifeLike & Other factory sound-equipped HO Locomotives. Compatible with Digitrax Sound Bug.Decoder Lock...

ESU 51955 NEM662 Next18 LokSound Direct Adapter Drop-In Replacement Board     Dimensions:  16.8mm x 69.3mm x 3.9mm To Top Of Plug   Having trouble trying to decide what decoder will fit in your favorite engine? Now with the...

ESU 58821 LokSound 5 Direct NMRA DCC Sound Decoder - HO Drop-in AT-Style Adapter Board     With its unique design the LokSound 5 Direct DCC can easily replaceboards that provide poor motor control, low volume, or generally inferiorsound. Not...

ESU 58921 LokSound 5 Direct NMRA DCC Sound Decoder - HO Drop-in AT-Style Adapter Board w/ Integrated PowerPack     With its unique design LokSound 5 DCC Direct, with integrated PowerPack can easily replace boards that provide poor motor...

NCE DA-SR DCC Decoder - HO Drop-in AT-Style BoardEasy installation in many locomotives with Kato drive mechanisms such as Atlas/Stewart/Kato and Proto 1000. This decoder has five function outputs.   Fits Models: Atlas GP38, GP40, RS1/2/3, C424/5,...

NCE DA-SR DCC Decoder - HO Drop-in AT-Style BoardEasy installation in many locomotives with Kato drive mechanisms such as Atlas/Stewart/Kato and Proto 1000. This decoder has five function outputs.   Fits Models: Atlas GP38, GP40, RS1/2/3, C424/5,...

NCE SW9-SR DCC Decoder HO Life-Like SW8-9-900-1200 Drop-In   This decoder is designed for easy installation in Lifelike Proto 2000 SW8/SW9/SW1200 Locomotives. NCE Decoders offer the following features: Torque Compensation for ultra smooth low...

NixTrainz Decoder Buddy 12 Output V5B 2.2k Ohm Resistor 21-HW - 21MTC Adapter Board - NEM660 21MTC Integral Connector     Decoder Buddy V5 and V5B The Decoder Buddy V5 and V5B were developed for the 12 output decoders and include a couple...

NixTrainz Decoder Buddy 8 Output Original 2.2k Ohm Resistor 21-HW - 21MTC Adapter Board - NEM660 21MTC Integral Connector     Decoder Buddy V5 and V5B The Decoder Buddy V5 and V5B were developed for the 12 output decoders and include a couple...

NixTrainz Decoder Buddy Mini 1k Ohm Resistor 21-HW - 21MTC Adapter Board - NMRA-NEM660 21MTC Integral Connector   Decoder Buddy V5 and V5B The Decoder Buddy V5 and V5B were developed for the 12 output decoders and include a couple added features...

SoundTraxx 852002 MC2H104AT Mobile DCC Decoder - HO Drop-in AT-Style Board     This decoder is a perfect mate for the non-sound units that run with Tsunami Sound Decoders.   Soundtraxx Mobile Decoders offer the following...

SoundTraxx 882004 ECO-PNP Econami DCC Sound Decoder - Diesel - HO Drop-in AT-Style Board     **Be sure to read about Tsunami 2 Speaker Selection here.     Now the biggest name is sound is also biggest name in value!...

SoundTraxx TSU-BH2 Bachmann Upgrade Tsunami 2 DCC Sound Decoder - HO Drop-in Board for Bachmann     **Be sure to read about Tsunami 2 Speaker Selection here.     A true pioneer in the model train industry, SoundTraxx has been...

SoundTraxx BLU-PNP 8 Function Blunami 2 DCC Sound Decoder - HO Drop-in AT-Style Board     **Be sure to read about Tsunami 2 Speaker Selection here.     Blunami will change the way you enjoy the model railroading hobby!...

SoundTraxx BLU-PNP 8 Function Blunami 2 DCC Sound Decoder - HO Drop-in AT-Style Board   **Be sure to read about Tsunami 2 Speaker Selection here.   Blunami will change the way you enjoy the model railroading hobby! The BLU-PNP8 is a...

SoundTraxx BLU-PNP 8 Function Blunami 2 DCC Sound Decoder - HO Drop-in AT-Style Board   **Be sure to read about Tsunami 2 Speaker Selection here.   Blunami will change the way you enjoy the model railroading hobby! The BLU-PNP8 is a...

SoundTraxx BLU-PNP 8 Function Blunami 2 DCC Sound Decoder - HO Drop-in AT-Style Board XCXD;R''] **Be sure to read about Tsunami 2 Speaker Selection here.   Blunami will change the way you enjoy the model railroading hobby! The BLU-PNP8 is a...

SoundTraxx BLU-PNP 8 Function Blunami 2 DCC Sound Decoder - HO Drop-in AT-Style Board   **Be sure to read about Tsunami 2 Speaker Selection here.   Blunami will change the way you enjoy the model railroading hobby! The BLU-PNP8 is a...

SoundTraxx TSU-PNP 8 Function Tsunami 2 DCC Sound Decoder - HO Drop-in AT-Style Board      **Be sure to read about Tsunami 2 Speaker Selection here.     A true pioneer in the model train industry, SoundTraxx has been...

SoundTraxx TSU-PNP 8 Function Tsunami 2 DCC Sound Decoder - HO Drop-in AT-Style Board      **Be sure to read about Tsunami 2 Speaker Selection here.     A true pioneer in the model train industry, SoundTraxx has been...

SoundTraxx TSU-PNP 8 Function Tsunami 2 DCC Sound Decoder - HO Drop-in AT-Style Board      **Be sure to read about Tsunami 2 Speaker Selection here.     A true pioneer in the model train industry, SoundTraxx has been...

SoundTraxx TSU-PNP 8 Function Tsunami 2 DCC Sound Decoder - HO Drop-in AT-Style Board      **Be sure to read about Tsunami 2 Speaker Selection here.     A true pioneer in the model train industry, SoundTraxx has been...

SoundTraxx TSU-PNP 8 Function Tsunami 2 DCC Sound Decoder - HO Drop-in AT-Style Board      **Be sure to read about Tsunami 2 Speaker Selection here.     A true pioneer in the model train industry, SoundTraxx has been...

SoundTraxx TSU-BH1 Bachmann Upgrade Tsunami 2 DCC Sound Decoder - HO Drop-in Board for Bachmann     **Be sure to read about Tsunami 2 Speaker Selection here.     A true pioneer in the model train industry, SoundTraxx has...

SoundTraxx TSU-BH1 Bachmann Upgrade Tsunami 2 DCC Sound Decoder - HO Drop-in Board for Bachmann     **Be sure to read about Tsunami 2 Speaker Selection here.     A true pioneer in the model train industry, SoundTraxx has...

SoundTraxx TSU-BH1 Bachmann Upgrade Tsunami 2 DCC Sound Decoder - HO Drop-in Board for Bachmann     **Be sure to read about Tsunami 2 Speaker Selection here.     A true pioneer in the model train industry, SoundTraxx has...

TCS 1000 A4X DCC Decoder - HO Drop-in AT-Style Board     The A4X is four function HO-scale "drop-in" style mobile decoder for Atlas, Athearn, Kato, etc. locomotives. Examples include the...

TCS 1001 A6X DCC Decoder - HO Drop-in AT-Style Board     The A4X is four function HO-scale "drop-in" style mobile decoder for Atlas, Athearn, Kato, etc. locomotives. Examples include the...

TCS 1252 WOWSound DCC Sound Decoder - WOW-Plug & Play w/ KA-4 Keep Alive -Electric - HO Drop-in Board for Bachmann ACS-64 This product is specifically designed to be installed into Bachmann's AMTRAK® CITY SPRINTER Trainset. ACS-64 recordings...

TCS 1343 LL8 DCC Decoder - HO Drop-in Board for Life-Like Proto 2000 with NEM652 8-pin Integral Connector     The LL8 is a 8-function direct-plug decoder designed specifically to meet the needs of LifeLike/Proto 2000 models. The LL8 can quickly...

TCS 1402 LL8-LED DCC Decoder - HO Drop-in Board for Life-Like Proto 2000 with NEM652 8-pin Integral Connector     The LL8-LED is a 8-function direct-plug decoder designed specifically to meet the needs of LifeLike/Proto 2000 models. The...

TCS 1416 AS6 DCC Decoder - HO Drop-in Board for Atlas S1, S2, S3, S4     This full featured 6 function BEMF decoder fits the following Atlas HO Scale engines: S1, S2, S3, and S4. See the installation pages for a full list of compatible...

TCS 1430 A6X-KA DCC Decoder - HO Drop-in AT-Style Board     The A4X is four function HO-scale "drop-in" style mobile decoder for Atlas, Athearn, Kato, etc. locomotives. Examples include the...

TCS 1001 A6X DCC Decoder - HO Drop-in AT-Style Board     The A4X is four function HO-scale "drop-in" style mobile decoder for Atlas, Athearn, Kato, etc. locomotives. Examples include the...

  TCS 1446 A4X-KA DCC Decoder- HO Drop-in AT-Style Board     The A4X is four function HO-scale "drop-in" style mobile decoder for Atlas, Athearn, Kato, etc. locomotives. Examples include the...

  TCS 1446 A4X-KA DCC Decoder- HO Drop-in AT-Style Board     The A4X is four function HO-scale "drop-in" style mobile decoder for Atlas, Athearn, Kato, etc. locomotives. Examples include the...

TCS 1543-HP Life-Like P2K MB-1 Motherboard Adapter Board - High Pins   This motherboard is designed to replace the existing circuit board in a Walthers Proto 2000 0-6-0 and 0-8-0. This board is designed to receive a WOW121 or EU621 decoder and...

TCS 1543-LP Life-Like P2K MB-1 Motherboard Adapter Board - Low Pins   This motherboard is designed to replace the existing circuit board in a Walthers Proto 2000 0-6-0 and 0-8-0. This board is designed to receive a WOW121 or EU621 decoder and...

TCS 1544-HP Bachmann MB-1 Motherboard Adapter Board - High Pins     This motherboard is designed to replace the existing circuit board in a Bachmann Light 4-8-2 (short tender) or the 2-8-0. This board provides an onboard Keep Alive® for...

TCS 1544-LP Bachmann MB-1 Motherboard Adapter Board - Low Pins     This motherboard is designed to replace the existing circuit board in a Bachmann Light 4-8-2 (short tender) or the 2-8-0. This board provides an onboard Keep Alive® for...

TCS 1545-HP Bachmann MB-2 Motherboard Adapter Board - High Pins     This motherboard is designed to replace the existing circuit board in a Bachmann Heavy 4-8-2. This board is designed to receive a WOW121 or EU621 decoder and provides an...

TCS 1545-LP Bachmann MB-2 Motherboard Adapter Board - Low Pins     This motherboard is designed to replace the existing circuit board in a Bachmann Heavy 4-8-2. This board is designed to receive a WOW121 or EU621 decoder and provides an onboard...

TCS 1546-HP Bachmann MB-3 Motherboard Adapter Board - High Pins     This motherboard is designed to replace the existing circuit board in a Bachmann Baldwin 2-8-2. This board is designed to receive a WOW121 or EU621 decoder and provides an...

TCS 1546-LP Bachmann MB-3 Motherboard Adapter Board - Low Pins     This motherboard is designed to replace the existing circuit board in a Bachmann Baldwin 2-8-2. This board is designed to receive a WOW121 or EU621 decoder and provides an...

TCS 1557-HP Bachmann MB-4 Motherboard Adapter Board - High Pins     This motherboard is designed to replace the existing circuit board in a Bachmann Richmond 4-4-0. This board is designed to receive a WOW121 or EU621 decoder and provides an...

TCS 1557-LP Bachmann MB-4 Motherboard Adapter Board - Low Pins     This motherboard is designed to replace the existing circuit board in a Bachmann Richmond 4-4-0. This board is designed to receive a WOW121 or EU621 decoder and provides an...

TCS 1615-HP RTR-MB1 Motherboard Adapter Board - High Pins     This motherboard is designed to replace the original lighting board in the Athearn Diesel Ready-To-Roll locomotives. Included on this motherboard is a KA2 Keep Alive® for smooth...

TCS 1615-LP RTR-MB1 Motherboard Adapter Board - Low Pins     This motherboard is designed to replace the original lighting board in the Athearn Diesel Ready-To-Roll locomotives. Included on this motherboard is a KA2 Keep Alive® for smooth...

TCS 1616-HP GEN-MB1 Motherboard Adapter Board - High Pins     The GEN-MB1 motherboard is designed to replace the original lighting board in Athearn's "Genesis" line of diesel locomotives. For a list of models with confirmed compatibility with...

TCS 1616-LP GEN-MB1 Motherboard Adapter Board - Low Pins     The GEN-MB1 motherboard is designed to replace the original lighting board in Athearn's "Genesis" line of diesel locomotives. For a list of models with confirmed compatibility with...

TCS 1617-HP IB-MB1 Motherboard Adapter Board - High Pins     This motherboard is designed to replace the original lighting board in Intermountain and Bowser diesel locomotives. Created to fit the Intermountain ES44 as well as the Bowser S12,...