[Amps] gs35b 144mhz

[Carl]

You consider 35% efficiency working great? You probably cooked the tube by 
now.

I get 60% from a 3CX1000A7 split line for over 25 years.

Carl
KM1H

----- Original Message ----- 
From: "Carey Lockhart, KC5GTT" <kc5gtt at gmail.com>
To: <amps at contesting.com>
Sent: Monday, March 14, 2011 7:22 PM
Subject: [Amps] gs35b 144mhz


> Hello all,
>
> i built a yu1aw 2 meter gs-35 amplifier about 8 months ago. been working 
> great. just recently i can here my voice coming from the cavity. also the 
> tube seems to be glowing a much brighter blue than before. with the lights 
> out i can not see any arcing.  the amp is running the following
>
> plate voltage 4100 no load
> plate voltage 4600 full load
> plate current 1.0a full load
> bias -30v
> output 1450 on diawa cn801hp
>
> any ideas would be appreciated.
>
> Carey, kc5gtt
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