05-31-2015, 08:14 PM
Your 90 is a mid version. I believe it would be a '31. You can tell an early version at a glance buy the min-max switch on the back of the chassis. The mid and late version do not have the switch. It is also easy to tell a mid from a late version. The mid has a four gang tuning condenser and the late has a three gang. $650 sounds a little high to me but, maybe not, collectors kind of go nuts over the Philco 90.
Steve
Steve
M R Radios C M Tubes