anyone familiar with the 211/vt4c circuit from Fi Primer?

[jarthel]

Here's the schematic:

http://http://www.simpletube.com/databank/SingleEnded/211_SE_6SN7_6SN7_10K.gif

since the image isn't the best quality, can someone confirm somethings for me.

1. on the top-left 6sn7, there is a 55V label. is the 2 wires that is intersecting connected together? so the grid is connected to the cathode?

2. how about the intersecting wires at the input? are they connected together?

3. same question as above but for the intersecting wires to the left of the 211. the intersecting wires close to the -47V label.

I think that's about it. I also about the "dots" on some of the intersection. BUT as I said, the image isn't good quality so I think it's best to clarify.

Thank you.

 

[astouffer]

1. No they are not connected.

2. Nope not connected either.

3. See above 🙂

Google for "srpp" to get a better idea of how the input stage works.

 

[kevinkr]

Here's a link that actually works: http://www.simpletube.com/databank/SingleEnded/211_SE_6SN7_6SN7_10K.gif

Otherwise I agree with astouffer