[Amps] GS-35B Vertical Mounting & Input Impedance

[RCM]

Mike wrote:

>Hello,
>
>Is it okay to use the GS-35B in an upside down, vertical 
>position?  Want to make final adjustments to the input pi network 
>while the tube is operating.  Unfortunately, the tube's grid 
>compartment is not easy to get to when the tube is in the operating position.
>
>Also, understand the typical impedance for a single GS-35B is 30 Ohms 
>which comes close to what I expect based on the anticipated operating 
>values of: Eg=30V, Ip=0.8A & Ig=0.2A.  However, input impedance 
>values from 100 Ohms to 25 Ohms have been found in the 
>archives.   Anyone have a smaller range of possibilities found from 
>experience?
>
>         73,
>         Mike, K4GMH 
>
>
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>
>  
>
But don't forget to reverse the normal USB/LSB, per band.