Amplifier signal paths

[Ben Bove]

What does "B+" mean in regards to an electronics schematic?  I see Signal, "B+," Ground.  Any insight?  Thanks!

[Mark II]

Ben,imho, B+ is the operation voltage of the circuit. for example the B+ for the Peterson preamp would be +25 volts, Haigler +15 volts.
so, technical opposite to "Ground".
sometimes in circuits the voltage is flagged that way, than you should be able to find another flag in the power supply. in this way you save a lot of connections to be drawn in a schematic.

kind regards
Mark II