Image | Item No. | Description |
| x877 | Electric, Train 4.5V Automatic Pole Reverser Brick 4 x 9 with Magnet Holder Catalog: Parts: Electric, Train |
| x877c01 (Inv) | Electric, Train 4.5V Automatic Pole Reverser Brick 4 x 9 with Magnet Holder with Blue Magnet Coupling, Train - 6.5mm Cylinder (x877 / x547b) Catalog: Parts: Electric, Train |
| x869a | Electric, Train 4.5V Microphone 4 x 4 x 2 with Horizontal Plug Sockets Catalog: Parts: Electric, Train |
| x869b | Electric, Train 4.5V Microphone 4 x 4 x 2 with Vertical Plug Sockets Catalog: Parts: Electric, Train |
| bb0097 | Electric, Train 4.5V On/Off Switch Brick 2 x 4 Catalog: Parts: Electric, Train |
| x871a | Electric, Train 4.5V Whistle Control Block 4 x 8 x 2 with Forward/Stop Functions Catalog: Parts: Electric, Train |
| x870cc02 | Electric, Train 4.5V Whistle Thin with Black Base Catalog: Parts: Electric, Train |