[Radioroslyn]

Hey Ron,
I've got one of those 604C's too. The dial scale was replaced before I got it and the color of it isn't the greatest. Sort of a pale yellow. Wouldn't mind finding a more amber/orange one. Like the pointer.
Someone replaced the caps in the power supply. Plays rather well and is sensitive on the sw band even picks up strong stations with out an antenna.
The tuning condenser is a bit loose I think there is a rubber affair that hold it steady. Haven't done anything about it ,the tuning knob keeps it pretty well centered.
For what it's worth I did make up the replacement bias cell with a watch cell (old one was dead). Didn't seem to make any difference.
Careful working on the bottom as it is easy to smooch the rf coils.
Good player!
Terry