[Amps] Bill Orr comment

[Carl]

Well, I think I can put a finger on that and debunk the naysayers who belong 
with the original posters "guru" as certified quacks in their own right.

>From the Radio Handbook 22nd edition Page 21.2:

" As a rule of thumb, then, a triode tube to be used for linear RF service 
in a power amplifier should have a large plate dissipation capability, and 
the output power to be expected from a single tube will run about twice the 
plate dissipation rating."

Nothing is said about 2.5X, only "about twice". To my interpetation 1.7 or 
1.8 X is close enough to "about" and as usual Orr is correct.

And as I alluded to in an earlier post it is the filament tubes that most 
easily fill this criteria. The cathode type are not as robust. It seems that 
only Peter caught my hint.

I wonder where the OP has disappeared to as he claims to be a big amp 
builder. And who is his quack "guru"?

Curious minds demand to know.

Carl
KM1H




----- Original Message ----- 
From: "Commander John" <crazytvjohn at yahoo.com>
To: <amps at contesting.com>
Sent: Wednesday, July 23, 2008 6:16 PM
Subject: Re: [Amps] Bill Orr comment


>A lot a hot air here about something that has not been identified as being 
>said by
>  Bill other than heresay.  Please provide which handbook, which edition 
> and page this is on.  Otherwise just like a lot of stuff here.  bs
>  john w9zy
>
>
>
>  ~~~~~~~~~~~~~~~~~~ w9zy
>
>
>  > I was reading the Bill Orr handbook and on his section about
>> amplifiers he says.....A properly designed grounded grid
>> amplifier should produce 2 to 2.5 times the plate dissapation
>> of the tube in output.
>
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