Gyrator PCBs arrived today, going to try to do this DarkVoice modifications this upcoming weekend, probably Sunday into Monday. I will pray to the oscillation gods Saturday night in preparation.
Also received all of the replacement resistors and capacitors for the Zenith radio restoration. Replacing all of the original circuit components will be laborious, looking forward to having the circuit functional so I can focus on the fun part, which is polishing/restoring the bakelite chassis. I will likely be using my buffing wheel to shine it up.
Let's see what else...once the DarkVoice stuff is mostly done and the radio is done, I really only have the 801A amplifier left on the big "to do" list (obviously there is an endless list of little tweaks to be done on my completed gear, but nothing super major that I have planned).
I am not rushing it as it has been a long time coming and I have huge expectations for the sound based on previous prototypes. Right now I am playing with some simulations, ideas I have to alter the pentode input stage, more to come on that.
More fun is thinking about the final aesthetics of the amplifier. What I think I want is to make it look more like a "vintage" SET amplifier. Might not be for everyone, but I like the look of these Asano SET designs, sort of a high-gloss burnt reddish brown with vintage bakelite knobs and toggle power switch.
We will see if tastes change, but that is what I am liking at the moment.