[klondike98]

I could use some advice here.  I am recapping a section where the previous repair person made some changes to the circuit.  I believe the reason they did so is because the OFF-ON-TONE three position switch is defective.  The OFF-ON power section of the switch works OK but one of the switches piggy backed on the same shaft but related to the TONE function does not seem to be working (I have not yet disassembled the switch to see if I can fix it).  In going from OFF to the ON position I believe the tone switch portion should engage the ground connection.  Then when moving from the ON to the TONE position the switch engages so the green and blue wires are connected.  In the modified circuit the switch lug that was connected to ground has been disconnected completely so that in the ON position C27 has no connection (checking this portion of the switch with an ohm meter it does indeed fail to engage properly so they unsoldered it from ground).  In the TONE position there is now a connection through a 310K resistor to the plate of the  6V6 tube instead of connecting to one of the grids in the 6V6. Here's an original schematic and a schematic of the modified circuit.  I'm assuming it actually worked with this set up at some point...does it make sense?  I could recap and leave it as is or try to repair the switch.  Thoughts???

[Image: https://www.dropbox.com/s/30su0tyux6gwhc....png?raw=1][Image: https://www.dropbox.com/s/bmvr8s0sifgblc....png?raw=1]

Stromberg-Carlson also has a wiring diagram which has been very helpful.  I've also done and Original and a Modified version.

[Image: https://www.dropbox.com/s/ego0c7h2fp6yr3....png?raw=1][Image: https://www.dropbox.com/s/talitim81w7csk....png?raw=1]