Kenwood model eleven - UK Vintage Radio Repair and Restoration Discussion Forum

PWH · 21st Apr 2021, 6:55 am

I don't normally do repairs for others as it isn't my trade but this beast belongs to a neighbour and he can get anyone else to look at it.

Before I dive in, I am hoping there will be members who have dealt with one of these before and can guide me. The story..
The neighbour has had the amp for years and it has worked perfectly. At a recent party he played it all evening then cranked it up much louder than normal. The fuse went pop. End of music!

I was hoping it was a tired fuse but no, replacing it and powering on, the display lights for .5 second then the fuse goes. There is a distinct whiff of burnt electronics.

I have the diagram. I suspect either a popped rectifier or output transistors. Has anyone rescued one of these before??

Thanks

21st Apr 2021, 6:55 am	#1
PWH Heptode Join Date: Mar 2003 Location: Waiheke Island, New Zealand Posts: 503	Kenwood model eleven I don't normally do repairs for others as it isn't my trade but this beast belongs to a neighbour and he can get anyone else to look at it. Before I dive in, I am hoping there will be members who have dealt with one of these before and can guide me. The story.. The neighbour has had the amp for years and it has worked perfectly. At a recent party he played it all evening then cranked it up much louder than normal. The fuse went pop. End of music! I was hoping it was a tired fuse but no, replacing it and powering on, the display lights for .5 second then the fuse goes. There is a distinct whiff of burnt electronics. I have the diagram. I suspect either a popped rectifier or output transistors. Has anyone rescued one of these before?? Thanks