After completion of the breadboard stage the questions were laid to rest. After more than a year exploring the circuit variations which tugged on the curiosity the circuit wound up back at the original design with parts section as anticipated. I should add here that the "natural motion" of an interstage or output transformers spoken of in vintage tube building lexicons that does indeed sound more natural than any of the other topologies such as, Ultra Path, Parafeed, plate chokes, plate resistors, plate CCS etc... The AC activity moving in both directions simultaneously within the transformer might have something to do with it. This speaks directly to the hierarchy of circuit over layout, layout over parts.
It was time to build up the first basic unit using mostly off the shelf parts and M6 cores.
Initial layout and parts mounting.
Wiring begins with earth rails and cathode supplies...
Rear panel goes on to allow signal input wiring and power entry.
Basic model uses Chimera Labs interstage and LL2766AM Opts.
Wiring complete. 10% silver clad copper in PTFE tubing is used through out. Air is the primary dialectric inside the PTFE as it is not snug. Silver oxide will develop but the copper is hermetically isolated from the atmosphere.
Completed unit in provisional livery to get it going - final design to be published soon.
Cover in place and a little long exposure.