Posted by PakProtector [ 64.12.116.134 ] on April 07, 2006 at 18:30:18:

Hey-Hey!!!,
I have built some linestages with cathode follower outputs. Straight triode, triode cascodes, and pentodes.

I saw a description of a linestage using the type 85 tube. It was described as having a cascode 6BL7 output stage. The 85 is a high plate Z, low-ish mu triode. Seems that this output buffer would present a minimal load to its plate.

How to manage the input capacitance? Will a screen grid have more capacitance to grid than the other options? Let me gues...depends on the screen grid...:)
cheers,
Douglas

Replies:

• Re: Douglas - manualblock 20:52:54 04/19/06 (1)
  • well now... - PakProtector 05:25:03 04/20/06 (0)