Universal Decoder Adapter 21MTC, Aux3/4 amplified

Lüssi 8096A – Universal 21MTC Decoder Adapter with Amplified AUX Outputs

The Lüssi 8096A is a universal 21MTC decoder adapter designed for easy digital conversion of analog Märklin locomotives. It uses the same compact 34 × 20 mm PCB as the standard 8096 version but adds amplified Aux3 and Aux4 outputs, making it ideal for logic-level decoders or models requiring higher output currents for lighting or auxiliary functions.

All necessary connections are placed on large solder pads for easy wiring. The board includes built-in resistors for LEDs or incandescent bulbs and features a speaker connection for sound decoders. The adapter can replace the old mechanical reversing relay (FRU) in many classic Märklin models.