Cross posted to start my own ... #2 ...all mode operational and 500 milliwatt. :-/ As is it would make a decent QRP or driver for a high gain MosFet input. The output is as clean as the desigh sheet intended. Now to figure out if it's 2166, 477, or further up in the 1973 or the 2086. Could even be some passive component. As usual I look in the back and both bias potentiometers are maxed... ...output varies according to bias setting for both driver and final but still no more than 500Mw . Also looks like someone disturbed all the potted toroids and several of the disc ceramics. I don't seem to have the sensitivity to see beyond the DC component off the buffer and pre-driver atm. Need to futz with the probes and a possible low level broadband amp. Before anyone goes off on shotgun repair and "just replace the driver and final" the 2166 is getting as rare as the 477/497 and the 2312/1307/1969. The failure mode is well understood be it a clueless butter knife monkey or reverse polarity (the driver and final are always connected to B+) . This exercise is because I need near assembly line proficiency. I may have mentioned that I have (had) 8 of these in house. I now have 12. I swear they multiply when I'm not looking. At least 3 of the 12 will be parts radios for the others and again, what is left is already spoken for. At least one hulk will go to a member here for cosmetic reasons and one stays here for the same reason. I hope to have small parts available and will post when that happens. In the mean time I'll keep this updated with what little progress and humor I have to offer.