I've been running a 10amp for a couple of weeks on an 6v under dash Coronado aftermarket car radio that I just finished up. It has basically the same tube complement as the AD radio and I'm using the original Mallory vibrator not a Solid-State one. In the original AD radio manuals under the parts listing it shows p.n.147685 - 14amp fuse as Fred has recomended.
Denny Graham
Sandwich, IL


Denny G
Sandwich, IL