I want to know the answer to the following question:
What sort of capacitors are used to carry a varying signal from the conductive plate of one tube to the grid circuit of the next stage?
All the background I'm provided with is that "In many vacuum tube circuits, interstage coupling capacitors are used to conduct a varying signal from the plate of one tube to the grid circuit of the next stage.". Is that enough to answer the question?
Answer: yes