I know. It just happened. I didn't have any side, marker or tail lights, so I replaced the blown fuse. Turned on the switch and (poof) smoke and the smell of phenolic burning, switched off, but the damage was done, melted through on the inboard fuse post.

I'm going to have to jury rig until I can locate a good fuse block and cover for a '70 240Z.

Check with Danny's Datsuns or Eric Neyerlin's ZParts one or the other of these folks should be able to help you out.