LOL - maybe I will
My earlier dissection showed the resistors in the original networks were carbon comp, but what about the capacitors?
Here's a closeup of a network without the opaque coating.
This side shows the values.
While this side shows the components. I looks to me like the caps are made from ceramic cylinders dipped in a conductive coating. The more coating it has, the larger the value.
That's what led me to try using NP0/C0G ceramic caps which seem to work just fine
