my preamp wont power up

I like my se,im not giving up on it yet.ive had it for a couple of years.One power tube went down,now this,i hope its all good from here

As far as I know most of preamps don't use power tubes...

If the tube preamp has a tube rectified power supply, then indeed there are tubes in the power section. ARC has used 6L6, 6550, 5AR4, and a few others in their preamps.

The ARC REF5 uses a 6550.

It's a fuse you didn't see somewhere, the circuit is no longer a circuit.

There should be internal power supply fuse than. Also rectifier tube has to be inspected again.
It seems that tubes in ARC last substantially shorter vs. other tube amps/preamps.