[Solamar]

Just for grins you may want to double check your sg at 460kc on the off chance that that band isn't working. You can do this by listening for it on a working broadcast set @ 920kc (460 X2) to hear it's second harmonic.

On the Philco 60 I can hear the 460kc tone at 920kc.  Signal generator hooked to the control grid of 6A7, 6A7 grid clip attached, ground clip clipped to shield.

At no frequency lower than 920kc do I hear the generated tone.