Sota sapphire question-power supply fuse rating?


Hi; I have acquired an earthquake-damaged early vintage sota sapphire (serial no. 13522) which I'm trying to patch up. Have contacted Donna at sota for advice, but the always-helpful reply might take a while and I need to get it working ASAP!

There is a 1.25" fuse in power supply which has blown; I read a forum note here which said you can blow the transformer if you get the fuse rating wrong, but I can't find correct fuse ratings, or sapphire power ratings to determine these anywhere!

We are on 230v power here if it helps in determining correct fuse rating...any help appreciated.

Mom
yourmomm

Showing 2 responses by tonywinsc

You definitely want the slow blow fuse. When a motor starts it has a high in-rush current for several milliseconds. A standard fuse may blow due to that in-rush current.
I just took a look at the fuse in my Sota power supply. It says, "BUSS MDL 1/4" on one end and, "250V" on the other end. It is a slow blow fuse. It is the original fuse. I know because I bought the tt new.