Whats the simplest way to build a PLL circuit with resonant scanning?

In Stan's patents he shows the electrical diagram of the PLL but it fails to mention
the electronic microchip used. check image bellow...

I know he used this circuit for the resonant cavity in the dune buggy,
but I would like to apply this to his  [figure 8xa voltage intensifier circuit .memo420]   I may have to use an additional winding on the coil for the pickup sensor what do you guys think?

Quote from Heuristicobfuscation on September 5th, 2013, 05:20 PM

I may have to use an additional winding on the coil for the pickup sensor what do you guys think?

I think you're correct, if I were to build a PLL the feedback to that circuit would be a pickup coil on the VIC/transformer.
Attached some food for thought

Quote from Lynx on September 5th, 2013, 11:46 PM

Quote from Heuristicobfuscation on September 5th, 2013, 05:20 PM

I may have to use an additional winding on the coil for the pickup sensor what do you guys think?

I think you're correct, if I were to build a PLL the feedback to that circuit would be a pickup coil on the VIC/transformer.
Attached some food for thought

Thanks for the pdf's this will get me started in right track...i will have to do my homework...