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Tube parameter ?
Tube parameter ?
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Old 6th April 2004, 12:56 PM   #1
woody is offline woody
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Tube parameter ?
Question Tube parameter ?

I have been looking at a GS-35b russian triode and have the data sheets but they are in a little different form than what I need. I need the plate resistance, mu and tranconductance how can I convert mutual conductance to tranconductance?

Thanks in advance ,

Woody
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Old 6th April 2004, 01:22 PM   #2
James D. is offline James D.  United Kingdom
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Hi Woody,

mutual conductance and transconductance are basically the same and are both expressed in mA/V so for the GS-35b it ranges from 25-40mA/V.

I don't know mu or Rp for this tube but using the plate curves at 0V grid bias, inspection gives Rp as 4k so mu would be between 6-10.

Hope this helps

ciao

James
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Old 7th April 2004, 07:35 AM   #3
cogsncogs is offline cogsncogs  United States
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Hello

Just to throw out a few formulas:

Rp = u/Gm
Gm = u/Rp
u = Rp x Gm

Wayne
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