busbars
Are, generally speaking, rather massive, heavy duty hi-current carrying strips of copper or other similar metal - you find them in installations where power is distributed to several components.
The only thing in your house which might come close to deserving that term would be in your Service Panel.
Are you talking perhaps about those little strips of melamine with the little loops where you can soldier components together?
I'd expect lots of those in something like your beautiful stereo (and thanks for the extra pictures). They're called:
terminal blocks or strips or soldiering lugs, etc. This link is badly organized, scroll and scroll and scroll - but maybe you'll find what you're looking for.
Just a beautiful stereo. Yes, GE did suffer a reputation for chroming plastic or making much of an insignificant or trivial component - but they did sound good and compared to the trash being produced just a few years later, they were good.
Magnavox by then was also into the Astro-Sonic solid-shit and coasting on their reputation very heavily in many areas.
I am allergic to nicotine and have often taken a pass on a nice piece of furniture when it turned out to have been smoked to death.
Ultimately, you may not be able to get rid of the smell, but.
I repair and update a lot of laptops. Especially Apple users over here tend to be smokers (something to do with being alternative and "free"). I've found that, after cleaning everything washable (which is not much when you are dealing with electronics) if I then cover the entire laptop liberally with activated carbon and let it set for a few days, most of the stink is gone. I know you can't bury seven feet of stereo in a pile of activated charcal, but you could try one of those air filters which ionize and have activated charcal filters inside the cabinet.
Just a thought.
There is a variation on "Febreze" over here which is specifically aimed at removing smells from wooden surfaces. You might give that a try, too. Anything too caustic like baking soda or too acid like onions (both work great otherwise) is out on wood. Would one of the orange-oil based cleaners help? They certainly do clean well, though I don't know who your finish would react with them.
