[wonderwrench]

I was looking at the schematic and the radio it self and my previous statement is all wet. Since the output transformer is on the woofer and the transformer has a 1/4 amp fuse 20 gauge wire would be fine. The field coils are high voltage low amperage so 20 gauge is also fine. The tweeters do not have the output transformers on them. Reason being one transformer is shared between both tweeters so the transformer is in the lower chassis. Since the tweeters only take a small part of the total output 20 gauge should be fine here also.

20 gauge here I come!