[AMPS] figuring tank Zbased on loaded Ep?

[measures]

>
>As my kids used to say when little, "But WHYYYYY?"
>
Because roughly 250v-min. on the anode is what you have to work with.   
If you attempt to go lower that c. 250v, you make IMD go up.  If you go 
for more than 250v, P goes down.  

>I'm thinking you are talking GG.

yes

>More P than plate V*I  => Lower Z than plate V/I.
>Source I is more than plate I.
>Am I right?

€  I have no idea what  "Source I" is.  


>What about a grounded cathode triode amp?
>
€  Up to about 200kHz, it is possible to construct a grid-driven 
neutralized, triode amplifier, providing you use a triode with a Mu of 5 
- maximum.  .  

later, Bob
>
>----------
>| From: measures <measures@vcnet.com>
>| To: AMPS <amps@contesting.com>
>| Subject: Re: [AMPS] figuring tank Zbased on loaded Ep?
>| Date: Thursday, October 21, 1999 6:24 PM
>| 
>| 
>| >measures wrote:
>| >
>| >>Ä  u gotta look at the peak AC anode volts, loaded.  For a triode, this
>
>| >>usually about 250v less than the supply. 
>| >
>| >Why? Why 250V? .......
>| 
>| Good question, Jon
>| 
>| For  8877s, 3cx800A7s, 3-400Zs, 3-500Zs and similar high Mu triodes,  
>| roughly 250v minimum is what one finds on the spec sheets.  
>| 
>| cheers
>| 
>| -  Rich..., 805.386.3734, www.vcnet.com/measures.  
>|

-  Rich..., 805.386.3734, www.vcnet.com/measures.  


--
FAQ on WWW:               http://www.contesting.com/ampsfaq.html
Submissions:              amps@contesting.com
Administrative requests:  amps-REQUEST@contesting.com
Problems:                 owner-amps@contesting.com
Search:                   http://www.contesting.com/km9p/search.htm