peavey heritage vtx mods

  Again, caveats from the previous post apply here as well.  Most significantly, I have not yet built the boost circuit, nor even verified whether the VTX power transformer can handle the additional heater current load.  And some of the wiring of the phase inverter, vis a vis nfb, has not yet been implemented or tested.  So these circuits are to some extent, aspirational.

In order to debug the issues I've been having, I've finally undertaken to draw up a proper schematic of my circuit, and my mods to the VTX power amp. Not shown are the VTX preamp, which I've made basically no changes to (except for swapping the yellow and green LEDs), and my boost circuit, which I haven't actually built yet anyway.  (The original boost circuit has been subsumed into the phase inverter section.) Certain aspects of the schematic reflect how I plan to change the design, not exactly as it stands now.  In particular, the NFB signal returning to the cathode of the third triode, and the cathode resistors of the fourth triode correspondingly changing to adapt to NFB no longer connecting there.  Also, I show the additional HV power supply components for the boost circuit (B+3), which are not there yet.