Kit: MX699KS; YLR453520 speaker
Typical Heljan big diesel - the lovely Peak Class 45 takes the big MX699KS sound decoder and a meaty YLR453520 box speaker
under the decoder platform.
The decoder is wired in, with a resistor PCB for the lighting - we normally put in independent control of headcode, red tail
lights, as well as connection for the fan unit. We've also added cab lights to this one.