[Top] [All Lists]

[AMPS] Re: Input Impedance.

To: <>
Subject: [AMPS] Re: Input Impedance.
From: (Geurts, Gerard)
Date: Tue, 24 Mar 1998 13:29:19 -0000
Snip .....

>Since input impedance equals drive power divided by peak 
>cathode current squared, you can see how the input impedance
>stays fairly close throughout the operating range.

Snip .....

>The input impedance is the ratio of input drive power to peak 
>cathode current.

So which one is it? 

Snip .....

>When you come up with a value from the above formula, you 
>can then substitute a non-inductive resistor of the calculated 
>value for the tube and use your noise bridge or MFJ analyser 
>to park your tuned input in the middle of the band.

I wouldn't substitute, but put in parallel.

Snip .....



Gerard, AA3ES

FAQ on WWW:     
Administrative requests:

<Prev in Thread] Current Thread [Next in Thread>