• 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.

Simple circuit for tube char and matching

Top bridge is backwards, GoatGuy?

@jderimig six of one... At the lower biasing voltages it shouldn't care. Run that supply at full blast and load half and the unloaded sides cap will swell and probably fail though. Ask me how I know 🙂
 
Top bridge is backwards, GoatGuy?

I suppose “by convention”, the bridge's right-most “tip” would be the positive side. If you remember the mnemonic (points to positive) in power supply applications, and follow the pointed-to (left-most) common, you'll see it hoists out-and-to-the-top, which is the conventional placement for + in most power supply circuits. At least ones that drive valves.

I purposely didn't place any values as yet. Looking for topological feedback from the electronic peanut gallery.

⋅-=≡ GoatGuy ✓ ≡=-⋅