• WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES.
    Building, troubleshooting and testing of these amplifiers should only be
    performed by someone who is thoroughly familiar with
    the safety precautions around high voltages.

Tube PS Capacitors and Mystery Schematic Symbols...

Two quick questions and should note that this is my first build directly from a schematic.

I'm working to source components for the attached 2A3 amp schematic and having difficulty finding can-style caps. I can use a couple of sections of a multi-section cap for C5 and C6 (in yellow). Is there a technical reason that I can't take the same approach for the other 20uF caps (in blue)? Or for that matter use one cap for all four 20uf caps?

Additionally, I'm unfamiliar with a couple of symbols on the schematic, and some Google work yielded nothing. The symbols are a "star" and a "cross with four dots" - called out with the red arrows. Is this something unique to Japanese schematics? More importantly, what do they mean?

I really appreciate any help you can provide.
 

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