Amplifier Fuses Blown

I've got a Cambridge Audio A5 Amplifier which has suddenly decided to stop working. When the power is turned on nothing happens except from a quiet buzzing from inside the unit. I looked inside to find two fuses have blown. They are 20mm x 5mm glass fuses and have T4AL 250V stamped onto them. The other end of the fuse has all sorts of marks (British Standard marks etc.) and 50T stamped onto it.

I can't seem to find anyone in the UK who sells these fuses though? I'm starting to think that the same fuse sold in the UK is called a different name or marked up differently, but I haven't much of a clue about electrics, so even if I'm right I couldn't figure out which fuse was the right one.

Does anyone know where I can get a replacement fuse from or if there is a compatible fuse I should be looking for?

Thanks.

Try phoning up Cambridge Audio, they might even pop a few in the post for free, goodwill and all that, it does still exist in places.

Have you tried Maplins?

Thanks guys. Cambridge Audio said to seek help from Richer Sounds - their UK distributor - so I called two stores and then the main service department who told me they would have to charge me £15 plus the cost of the fuses. But the engineer was helpful and said to buy any T rated 4amp 20mm fuse, which Maplin would sell... but they don't. They only sell 5amp T rated fuses. I think T stands for 'timed', or 'slow-blow' fuse.

I've found an online fuse store who sell packs of 10 T 4amp fuses for £5 including delivery so I guess I'll go down that route.

Rapid have them at 2p each ( http://www.rapidonline.com/Electric...0mm-Fuses/Time-lag-20-x-5mm-glass-fuses/73585 ), unfortunately there is a rather steep small order charge.

cheers plugwash. I ordered some today - 10 for £3.71 including delivery. At least I'll have spares if they start to blow again!

It looks like they have transformer issues.....

http://www.diyaudio.com/forums/showthread.php?t=147058&highlight=Cambridge+Audio

Be wary of just replacing the fuses, something has caused them to fail in the first place. If you are unsure about poking about with potentially fatal voltages I would say take it for repair rather than try deal with it yourself.

If all else fails, gut it and use the chassis to build a LM3875 or LM1875 chipamp. You wont be disappointed.

Good luck.

John