Thanks guys for all the great suggestions. I will do a second pass at cleaning the case. Smell is not an issue here, I guess the heat of the amp boiled off the odor. I normally avoid smoker owned equipment, but I make exceptions for Collins radios I should not complain too much about the nicotine, I used the smoking angle to negotiate a good deal on the unit. It is wired for 240 volts and I only powered it up 120 volts to be safe for initial testing. HV reads 900 volts (1/2 of the normal value as expected) and three of the four 572B tubes light up. Hopefully, just a nicotine clean up and tube replacement is needed. Caps looks like they were replaced at one point.