I recently picked up a non-working SX-1280.
My first discovery is that the AWX-127 boards have been replaced with some hand-made PCB's in order to accommodate some non-original output transistors. I knew it was a non-working unit but I did not know the extent of it's injuries. When I discovered this I was a bit set back and began to wonder if this is a worth while project. I have not looked to see what transistors were put in there in place of the originals.
It's present condition is that the left and right output amps have been disconnected. Other than that it does seem to not be molested to badly. I've not tried to power it up- obviously.
Is anyone aware of a hand-made board being used out there in place of the AWX-127 successfully? And are there replacement transistors that are worthy to use in this receiver?
What do you think the pit falls would be if I put it back together and brought it up on a variac just to see what it does and doesn't do and then look at voltages?
My first discovery is that the AWX-127 boards have been replaced with some hand-made PCB's in order to accommodate some non-original output transistors. I knew it was a non-working unit but I did not know the extent of it's injuries. When I discovered this I was a bit set back and began to wonder if this is a worth while project. I have not looked to see what transistors were put in there in place of the originals.
It's present condition is that the left and right output amps have been disconnected. Other than that it does seem to not be molested to badly. I've not tried to power it up- obviously.
Is anyone aware of a hand-made board being used out there in place of the AWX-127 successfully? And are there replacement transistors that are worthy to use in this receiver?
What do you think the pit falls would be if I put it back together and brought it up on a variac just to see what it does and doesn't do and then look at voltages?
Last edited: