I can't tell if everything is connected right by looking at finished pcb but I believe that person which was helping you knew what to do. The only way to tell right now is to power it and check each oscillator with a scope, including 7th one - slow pulse, op amp and the output from modulator, after the transformer.There is one pot which adjust the output, all other are trimmers to set the frequency. In the paper it says - dry battery only.
I wish John could shed a bit more light on this circuit. I'm still not sure about two oscillators frequencies.
Thanks
Vtech
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