Siemens Desiro UK Electric Multiple Units | Class 350 360 380 444 450 700 707 & 717

[@Del-bm]

A great collection of clips

[@GJ37425]

Thank You!

[@ACELog]

Basically, the sound is the sloid-state Thyristor-chopper power controllers regulating the current to the motors. The old Bakerloo & Picadilly trains use the old switched-resisors to do the same thing; hence they gove the "clunk-tick-tick-tick" Sound. For a full orchestra of other Siemens Desiro UK Electric Multiple Units sloid-state sounds, search for: "Siemens Desiro UK Electric Multiple Units | Class 350 360 380 444 450 700 707 & 717"

[@lowen74s]

No, it's an oscillating pulse frequency to the motors

[@railtechadventurer207]

The 350's, 360's, 380's, 444's and 450's have a funny sound when they arrive and depart, same with the 700's, 707's and 717's being on third rail power. Great trains overall.

[@kennysbusdrawings]

It sounds like pac man

[@lowen74s]

Annoying sound if you hear them everyday...

[@spongatejunction]

The Desiro family of trains might not be the pretty of trains by god they are certainly comfortable trains going

[@queenscentralmodelrailway]

By golly, there are some ugly looking trains... and some of those liveries don't exactly help either ! 😢