No spark?

[nightcruiser]

Hi guys,
Today i was out riding my 1981 LC350, just enjoying the sun and having a bit of fun blasting around.
Then a sudden mis-fire and i ended up pushing it back home.
Investigations have revealed, the spark plugs just don't spark anymore.
I've checked all the obvious areas and even tried unplugging and reconnecting all the loom connectors, but still no luck.
Something i did that did confuse me was:
Using a test lamp with the ignition switched on and the coil un-plugged, there was no power going the the coil.
Is this right or do you think the black box is died?
The bike was running spot on before this happened.
Any idea's would be a great help please.
Thx Dave.

[nightcruiser]

Cheers Dirtbag i have since discovered and repaired the fault.
Some former idiot who had removed the alternator hadn't fitted the woodruff key correctly, causing whole lot to spin on the tapered shaft and hence no spark.
Fools but easy done hey.
Thx Dave.

[Norbo]

seen a bloke at the side of the road once with the same problem , I fixed it for him as i had some sockets in my car , just anough for him to get home and fit a new key . Your lucky it didnt hapen out in the booneys like this bloke would have been walking for ages to get to a gararge .