burdij
Well-known member
I finally got around to plotting the triode curves for a "vintage" German-made Sylvania 6267, an Electro Harmonix EF86EH, and the reissue Tungsol EF806. I found it interesting comparing these curves with some of the other tubes that are commonly used in condenser microphones. The lines are spaced at 0.5v grid voltage increments.
The Sylvania 6267:
The EH EF-86EH:
The Tungsol EF806:
The gain in a triode configuration appears to be around 20.
The Sylvania 6267:
The EH EF-86EH:
The Tungsol EF806:
The gain in a triode configuration appears to be around 20.