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[AMPS] What (modern) tube to use?

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Subject: [AMPS] What (modern) tube to use?
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Date: Sat, 20 Feb 1999 15:34:06 -0500

On Sat, 20 Feb 1999 00:10:02 -0500 "Joe Subich, W8IK/4" <>
>> ?   The good news is that the 8171 does not need to be left on 
>because it
>> is "instant on".  Thus, it makes no heat when laying in wait.    
>When I
>> ran one, I found that I needed it only occasionally.  During the 
>> I opened the window to let the heat escape.  During the Winter, I 
>used it
>> to take the chill off of the room in the mornings.
>Still, 550 watts of filament power and 120 to 150 CFM of airflow 
>data sheets) seem a bit hefty for an amateur amateur amplifier.  Of 
>it looks like one of the 200 watt rigs will drive the 8170 or 8171 to 
>10 KW
>output with a 400 Ohm grid resistor and a 9:1 autotransformer in the 
>circuit.  All in all ... not an amplifier really appropriate for 

Agreed, except to continue the never ending reflector hype on its use.
Belongs more on the CB reflector IMO.

73  Carl  KM1H

>   ... Joe Subich, W8IK/4  ex-AD8I
>       <W8IK@IBM.NET>
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