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[AMPS] figuring tank Zbased on loaded Ep?

To: <amps@contesting.com>
Subject: [AMPS] figuring tank Zbased on loaded Ep?
From: wb4mnf@atl.org (Bob Duckworth)
Date: Thu, 21 Oct 1999 15:27:33 +0100
As my kids used to say when little, "But WHYYYYY?"

I'm thinking you are talking GG.
More P than plate V*I  => Lower Z than plate V/I.
Source I is more than plate I.
Am I right?
What about a grounded cathode triode amp?

-bob

----------
| From: measures <measures@vcnet.com>
| To: AMPS <amps@contesting.com>
| Subject: Re: [AMPS] figuring tank Zbased on loaded Ep?
To: <amps@contesting.com>
| Date: Thursday, October 21, 1999 6:24 PM
| 
| 
| >measures wrote:
| >
| >>?  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.  
| 
| 
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