Old RELAY elevator controller - complete run-through (beginners welcome!)

This video explains the circuits of an old J&E Hall relay elevator controller, still in operation today!
All explained with my 'attention to detail' and hopefully in such a way that anyone can understand.

Thank you very much to THE UNITED LIFT CHANNEL for all the footage:
   / @theunitedliftchannel  

TO MY VIEWERS:
I'm hoping we've done enough to be worthy of your support...please consider 'liking' the video and 'subscribing' to the mrmattandmrchay channel - thank you very much!
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LINKS:
TO SEE PART 1, click here:
   • RARE 1950s freight lift in operation ...  
DERELICT 8 FLOOR LIFT: (The United Lift Channel)
   • Derelict gated lift look around  
MECHANICAL FLOOR SELECTOR: (The United Lift Channel)
   • A look at a very interesting lift imp...  
MY BEST VIDEOS PLAYLIST:
   • MY BEST VIDEOS (only the best ones en...  
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THE MRMATTANDMRCHAY CHANNEL, established 2008:
I'm passionate about uploading quality and interesting videos for YOU, my audience.
What is my channel about? "Old lift machinery made interesting", old air-raid sirens, prehistoric alarm equipment. If "I" don't find it interesting ...then IT DOESN'T GET UPLOADED!
I always spend a lot of time editing my videos with animations, video in-sync with music and voice overs to bring you QUALITY videos to watch.
My moto - "Quality NOT Quantity" - spending a month editing a video is not a rarity!
But without you, I'm nothing here. Thank you so much for watching.
...mrmattandmrchay is me (Matt) and my son Chay.
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LIFT IDIOCY WITH KIDS:
   • Random lift adventure 13  
''Some channels'' treat playing around in lift shafts as something 'fun', and meeting up with kids which normalises the activity for everyone watching.
The consequence:
   • Teaching KIDS TO SURF LIFTS/ELEVATORS...  

Also featured in THE SUN and THE MIRROR newspapers:
https://www.thesun.co.uk/news/1593382...

My channel does not promote or glamourise dangerous activities like lift surfing.