GWR

LMS

LNER

SR

SE&CR

LSWR

BR/WD/Priv

S&DJR

LB&SCR

L&Y

GNR

Misc

Shunters

Diesels

DMU

Electric

Heljan O Gauge Class 35 Hymek with Zimo Sound

Kit: MX696KS; 2x Zimo Dumbo 50X15X14-2W speakers

We love hydraulics, and this big Heljan 7mm model is a beaut!

The usual approach is taken to fitting sound - remove the factory PCB to make space for the MX696KS large-scale decoder and screw-terminal adapter board. All wiring remains the same, except we have to add resistors to protect the lighting, as the removed PCB had the original resistors.

We remove all of the plugs and sockets too, as the wires will simply be screwed direct to the decoder's screw terminals.

A pair of dual Dumbo speakers are connected in series. The dual speakers in themselves are 2W at 4 ohm, so connecting in series gives 4W at 8 ohm.

Some work to do on the lighting, adding resistors, and ensuring they get connected up to the right terminals on the decoder!

Please note that these guides are provided as useful resources for you, as-is. YouChoos cannot be held responsible for errors in the information, or for any damage caused to your models or equipment if you choose to follow any of the steps detailed here.