[Amps] GU 74 operating parameters

[Dave Hachadorian]

I run a PAIR of GU-74B's.
At 1500W output, for the PAIR:
Ep = 2700 V
Ip = 1 A
Is = 30 ma

Dave Hachadorian, K6LL
Yuma, AZ

----- Original Message ----- 
From: "Ulf Tjerneld" <star at frizon.org>
To: <Amps at contesting.com>
Sent: Wednesday, January 06, 2010 6:26 PM
Subject: [Amps] GU 74 operating parameters


>
> Hi all,
>
> I'm building my first amplifier - or my first serious amplifier 
> that is. The chosen tube is a GU74B and I'm wondering about the 
> operating parameters when I'm designing the Pi-L filter. I have 
> of course read the specs sheets where a maximum plate current 
> of 800mA at a plate voltage of 2500 volts is stated. But what I 
> really would like to know are the "best" conditions to operate 
> this tube under. I guess I will get different answers from all 
> of you, but it would help me anyway to decide on something to 
> use as as a basis for tank calculations.
>
> My PSU will deliver 2500 volts under no-load conditions.
>
> Thanks!
>
> 73's
>
> Ulf /SM0NOR
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