Headlight codes on the Northern Line

twihlet

Posts: 22

Headlight codes on the Northern Line Mar 27, 2019 20:28:54 GMT

Post by twihlet on Mar 27, 2019 20:28:54 GMT

Can anyone help with discovering the headlight codes used on the Northern? My Ian Allen ABC dated around 1959 says all 5 lights were showing for all routes on the Northern, whilst all other lines had a comprehensive series of codes for all destinations. After that date the provision of code lights on DMs was dropped on new stock. But what was the case with Standard Tube Stock?

It's a mystery........................
Twihlet

norbitonflyer

Posts: 6,614

Headlight codes on the Northern Line Mar 27, 2019 21:26:40 GMT

Post by norbitonflyer on Mar 27, 2019 21:26:40 GMT

trainweb.org/tubeprune/Marker%20lights.htm

This doesn't say how the codes worked on the Northern for Standard stock although there were fewer destinations then (I think only eleven possibilities rather than the 21 available when the Northern Heights opened), so four lights were presumably enough.

The 1956 stock were the last new DMs to have headcode lights.

Last Edit: Mar 27, 2019 21:40:40 GMT by norbitonflyer

brigham Posts: 2,535	Headlight codes on the Northern Line Mar 28, 2019 8:45:43 GMT Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by brigham on Mar 28, 2019 8:45:43 GMT If the middle one is lit, it goes via the Bank. That's my limit...

Post by twihlet on Mar 27, 2019 20:28:54 GMT

Post by norbitonflyer on Mar 27, 2019 21:26:40 GMT

Post by brigham on Mar 28, 2019 8:45:43 GMT