The main system is made up of 833a choke loaded and parafeed output. The driver is a mu-follower made up of a 6N6P loaded with a D3a. Second stage is a 300B with an IT (step-down) into the 833a valve.
Shearer horn w/ JBL 2220 drivers, mid horn w/ RCA Mi-9486 dual compression drivers and Dittmar’s tweeter horn