

These are the smallest DCC power preservation boards made. They work in a way that is similar to Train Control Systems trademarked “keep alive” products. They offer the best options for improving operations of N Scale locomotives. These do not provide the level of level of power preservation that can be installed in larger locomotives.
- Smallest DCC foot prints.
- 470uF model is 9.5mm W x 6.6mm L x 3.6mm H
- Has the same or better power extension time as the TCS KA-N1 at DCC track voltages higher than 12V.
- Can be trimmed with diagonal cutters to 8.3mm W x 5.9mm L.
- .33″ x .27″ x .15″
- 840uF model is 9.5mm W x 9mm L x 5.5mm H.
- Runs %25 longer in extension time than TCS KA-N1.
- Can be trimmed with diagonal cutters to 9mm W x 9mm L.
- .36″ x .33″ x .22″
- 470uF model is 9.5mm W x 6.6mm L x 3.6mm H
- Expandable by easily adding parallel external capacitors. Separate solder pads are provided for this purpose
- Easy to program when installed. Will program like a normal decoder when connected to a Lok Programmer, or a Soundtraxx PCB-100 Booster (Page Mode)
- 16V maximum track voltage
- Over voltage protected
- For best results the 470uF should be used with an external 470uF capacitor for a total capacitance of 940uF
- Order the Kyocera TCN4477M016R0070E (0.287″ L x 0.240″ W 0.079″ H (7.30mm x 6.10mm x 2mm)), capacitor from Digi-Key if you want to add more capacitance.
- These do not provide the level of power extension that can be installed in larger locomotives. It does provide enough power extension to take you across joints a minor track dirt.
Page down for examples of installations.

Add on 470 UFD 16 Volt capacitors. (0.287″ L x 0.240″ W 0.079″ H (7.30mm x 6.10mm x 2mm))
U.S.A. Shipping is $5, Canada 9.95 USD, otherwise 14.95 USDInstallation Examples
Atlas SD9 Installation (N Scale)




Atlas SD45 Soundtrax Installation (N Scale)



Lok Select Micro Installation (N Scale)


Kato F Unit Lok Sound and Lok Pilot Micro 5 Installation (N Scale)
This installation included the WVD ESU Loksound 5 Micro Next18 Adapter PCA.


Scale Trains SD45T 940uF Installation (N Scale)
Over all view

940uF

Connection to Scale Trains mother board.

Additional add on capacitors installation.

Atlas GP20 with LokSound 5 58721 Decoder (N Scale)
Installation of the 470uF unit with auxiliary low profile addition 470uF capacitor.

Red wire is U+ or UE+ and black wire is ground.


Power extender mounted to the left under the decoder.


Atlas N Scale SD35 Wiring with LokSound 5 58721 Micro DCC
Installation with 470uFd and additional 470uFd capacitor.

Red wire is U+ or UE+ and green wire is ground. Here the power extender is wired before installation under the rear of the decoder. Remove the plastic shield under the rear of the decoder to make more room for the power extender. Also trim the light guide for the rear light to make room for the added 470uFd capacitor.
The power extender has also been trimmed with a cutter to make it as short as possible. This photo is before trimming was done. Once the power extender is trimmed it will fit closer to the chassis and the front of the locomotive. The add on capacitor will also fit closer to the power extender and the decoder.

U+ connection.
