I have never, ever, used or reused a bumble bee cap. Those things are just toxic if they start leaking (which they do). The oil in them do contain PCB's. Nasty stuff.
The Sprauge orange drops are quite good and i use them in my old radio restorations and guitar amp restorations, but if i'm going HiFi i prefer the yellow polypropylene caps. I usually get mine out of old computer equipment from the 80's. I have used oil filled motor starter cap's in a power supply section before (Pi network) and was really really pleased with the results.
Another good source of B+ filtering caps is the newer switch mode computer power supplies. They usually have a 200uF cap rated at 450VDC that lasts for years.
Back to the champ, i do have an original tweed. Scored it at a flea market in Paris Texas for $25. It had been sitting in an attic for years.
There is nothing sweeter than the distortion out of one of those amps. A friend and i once took that thing and did a Jimmy Page trick with it. We set it at the end of a small hallway with one mic up close and another mic at the the end of the hallway. Once we played around with the levels between the two, the sound was just unreal.
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