Mystery component

[Timbo]

Could someone tell me what these are, please? Inductors maybe? One of them has A33 printed on it, the other possibly B68.

[trobbins]

Pretty sure they are capacitors.. Where are they in the circuit?

[Timbo]

Hi,
one of them is directly in front of the PI grids, so that makes sense. The other, I’m still trying to figure out! All of the other caps are either electrolytic or Mullard mustard types. So I guess these are in the nF/pF range?

[Mick Bailey]

Low value caps used to be available as tubular ceramic types, often in pF values. Very common in old tube radio sets as they are stable - important when dealing with RF. I'm wondering if your components are this type.

[Timbo]

Yes, thank you. Looks like they would sometimes have coloured bands to indicate value.