+ EDIT FISHER 500-C SCHEMATIC:
    - DETERMINE PARTS TO BE USED
    - REDRAW OUTPUT SECTION
    - EDIT POWER SUPPLY
+ EDIT FENDER AB763 SCHEMATIC:
    - DETERMINE SECTION TO BE USED
    - REDRAW PREAMP SECTION (WITH REVERB, POSSIBLY)
    - NOTE POWER SUPPLY NOTATIONS
+ RESEARCH PHASE INVERTER TYPES:
    - DETERMINED 500-C TO HAVE CATHODYNE PHASE INVERTER
        + AKA SPLIT-LOAD
        + AKA CONCERTINA: OUTPUT LOOKS LIKE A CONCERTINA BELLOWS
    - CONSIDER MODIFYING CIRCUIT FOR "PLEASANT" OVERDRIVE OR
        + CHANGING TO AC-COUPLED LONG TAIL PAIR (FENDER TYPE)
    - PROJECT NOTES: EXPLAIN WHY PHASE INVERTER IS NEEDED
   
+ CHANGE GRID LEAK RESISTOR FROM 330K -> 220K
    - HIGHER THAN TUBE SPEC TO START OFF WITH
+ DECISION MADE TO USE FENDER LTP PH. INV.
    * WHAT ABOUT FEEDBACK LOOP COMPONENT VALUES???
    * 2.2K || 1000pF

(3HRS)