Decoder Buddy Information

This product is versatile in terms of direction of the placement of the board and mounting in various configurations. It can easily replace a QSI board, a Dual Mode decoder board or be mounted directly on the electric motor or frame with Kapton tape. (It is recommended that a piece of Kapton tape be placed on the bottom of the mother board to assure electrical isolation from the electric motor or frame.)

This mother board does not include the 21 Pin Decoder.

This mother board and connector board require soldering.

These printed circuit boards are NOT FOR USE IN A DC SYSTEM.

The on board resistors are sized for LEDs. (2.2K)

Now I have added Decoder Buddys with 0 ohm, 750 ohm and custom specified resistors for function outputs. These may be requested by the email link.

The mother board includes;

One 21 Pin Decoder receptacle,

Two pairs of track input pads,

One pair of motor input pads,

One pair of stay alive pads (U+ and GND),

Two pairs of speaker pads wired in parallel,

Decoder Buddy V5 and V5B

The Decoder Buddy V5 and V5B were developed for the 12 output decoders and include a couple added features.

This mother board does not include the 21-Pin Decoder.

This mother board requires soldering.

This printed circuit board is NOT INTENDED FOR USE IN A DC SYSTEM.  However, if the decoder you are using supports DC operation it should work.

The V5 and V5B come with standard 2.2K resistors onboard.

I can substitute / supply custom specified resistors for function outputs.  These may be requested by the email link.

The mother board includes

• One 21 Pin Decoder receptacle
• Two pairs of track input pads
• One pair of motor input pads
• One set of stay alive pads (U+, GND on the V5.  The V5B has the “W” pad for a Power Pack)
• Two pairs of speaker pads in parallel by side
• 12 lighting outputs on a separable “small connector board”
• Lighting outputs A11 and A12 are replicated on the “motherboard”

Resistors for use with LED lighting. The “0” ohm resistors accommodate previously installed LEDs with resistors in line and “12-volt LEDs”.  It is IMPORTANT to realize that resistors must be used when LEDs are connected to the lighting outputs of the custom “0” Ohm boards!!!

For more info visit

https://nixtrainz.com/