Jeff, here's the info.



1. Set tap on power transformer to a voltage slightly higher than line 

voltage. My line is 124 volts so I use 130 volt tap.



2. Replace 5R4G rectifier with indirectly heated 5V4-G. This eliminates  

voltage surge which is hard on capacitors.



3. Replace 6BA6 first rf amplifier (V-1) with 6BZ6 for improved weak signal 

reception on higher frequencies. 



4. Throw away plated tube shields. Use black heat-sink shield on 6BZ6. Other 

tubes don't need shields, which only make them run hotter.



That's all there is to it.  73  Bill