I discovered something interesting today. I have two schematics of the MK III; one has a 3 amp slow blow fuse and the other schematic shows a regular 3 amp fuse.

I'm using regular 3 amp fuses. Maybe that's why my fuse blew. (it's been OK since I replaced it)

Jonathan

I was looking at my schematics of the Mk III and saw something I didn't notice before; one schematic shows 3A slow blow fuse and the other one shows a regular 3A fuse.

What's up with that?

Jonathan

Jon,

The pictorial that shows "3 amp slo-blo" is probably the pictorial that I enhanced with color. All the original Dynaco pictorials had no color. In the Stickys above under "Dynaco Tube Pictorials" is a large version of the enhanced Mark III pictorial. Below is a smaller version of the same pictorial.

Bob