I contacted the UK distributer he said
Hi Dave,
I doubt it will be cost effective to repair one of the original Gamer amps
so it might be worth looking at getting the BKA-130-C which is the current
digital version used in the Gamer2 package. this costs £140
We do not keep any parts for these, but the resistor value is .22 ohms
although you will probably find that just replacing the visually obvious
failed components won't necessarily fix the amp - could be the old can of
worms I'm afraid.
I can source the capacitor in the UK for £3.85 plus £12 postage!
I can also source one from China for £5 inluding postage but they dont give either the temperature it works at or the phyisical dimensions I have sent them a message though. One place in Hong Kong has one that is 35mm diameter when I need a 30 mm one. As the caps are vey close together that one is a no go.