Many early radios schematics didn't get published in Rider but are similar. Check Stewart Warner 300 series radios if your radio is battery operated:
http://www.nostalgiaair.org/PagesByModel/794/M0029794.pdf
Pfanstirhl made an Overtone 7 which has 5 tubes. Overtone 10 has 6 tubes.
Your radio having 7 tubes may be AC operated? If so might check Atwater Kent Model 40. Circuit may be similar?
http://www.nostalgiaair.org/PagesByModel/354/M0001354.pdf
Norm
:There were several models called the "Overtone". If yours happens to be a 34, there is a schematic in the June 1928 "Radio Broadcast" magazine, page 92. But it's only the radio, not the power supply, and there are no parts values.
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