Timed Stop and Auto ReStart Circuit

links to aztec warrior:
• Stop and Go, Return, S...
• Stop n Go Final @FENI...
• Stop n Go 4 Demos @mik...
Someone asked if I knew how to make a circuit that stopped with reed switches for a specific amount of time and then restart. I played around and discovered I couldn't figure it out. I reached out to and asked if he knew how and he did. I wasn't able to duplicate his circuit but I did make it work. This is what I came up with so far.
0:00 intro
0:45 reed switch as a trigger
1:21 transistor demo
1:51 timer relay base diagram
2:43 wiring with reed switch and Bosch relay
4:00 magnet reed switch demo
4:12 how delay relay works B mode
5:53 reed switch Bosch relay diagram
8:46 simple transistor explanation
9:57 my transistor explanation
11:39 PNP diagram
13:19 NPN diagram
14:21 wiring circuit with PNP transistor
16:19 PNP demo
16:56 wiring circuit with NPN transistor
18:59 NPN demo
19:47 flyback diode
21:57outro

[@scottkrieman8108]

So great to see a new video!