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[AMPS] Heathkit Warrior (HA-10) questions

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Subject: [AMPS] Heathkit Warrior (HA-10) questions
From: (2)
Date: Mon, 3 Sep 2001 11:36:56 -0700
>Hello all,
>I recently picked up a somewhat working Heathkit Warrior, complete with 4 
>572B's.  Primarily, I picked this thing up to learn about tube-type 
>equipment.  My plans are to eventually build in T-R switching and proper 
>grid bias circuits.  Before I do that though, I have encountered a problem 
>with the amp and I'd like to run the problem past you experts.
>The issue I'm facing is low plate current.  According to the assembly docs, 
>the amp should exhibit resting plate current of 90 to 100 ma (after full 
>warm-up of the 866A's).  Plate voltage is good at 1650 volts.  Grid current 
>is zero at idle.  Resting plate current is only 50 ma.
//  First off, I would measure the accuracy of the plate/anode current 

>... ...

-  R. L. Measures, 805.386.3734,AG6K,  

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