[TenTec] Centurion Plate Current Meter

[Robert & Linda McGraw K4TAX]

Could be that C2 or C3 are open. Both are 0.1 and are on the Display Board 
and are across the meter. Could cause a dampening problem as you describe.

73
Bob, K4TAX

----- Original Message ----- 
From: "Henry Pfizenmayer" <pfizenmayer at worldnet.att.net>
To: "Discussion of Ten-Tec Equipment" <tentec at contesting.com>
Sent: Thursday, August 11, 2005 5:22 PM
Subject: Re: [TenTec] Centurion Plate Current Meter


> Mike - I fired up the Centurion -- The new plate meter is well damped --  
> With a final plate current of 600 ma it goes up to 667 ma and drops back 
> to 600 ma - no undershoot with key up.
>
> The grid / multimeter is not nearly as well damped -- With Ig set at 240 
> ma steady state , key down it goes to just about full scale 400 ma , down 
> to 160 ma , back to 280 ma , back down to about 180 ma  then two or three 
> small swings to 240 ma . This  is how the old plate meter was . As a 
> matter of fact I did not remember the new multimeter being that bad but 
> maybe I just did not look at it that closely --  FWIW -- Hank K7HP
>
>
>
> ----- Original Message ----- 
> From: "Michael Tope" <W4EF at dellroy.com>
> To: <tentec at contesting.com>
> Sent: Thursday, August 11, 2005 7:16 AM
> Subject: [TenTec] Centurion Plate Current Meter
>
>
>>I am checking out a Ten-Tec Centurion 422 (2 x 3-500z)
>> amplifier for a friend. This morning I fired it up on 20 meters
>> (into a dummy load) for this first time. Everything looked
>> good (output power, tuning, etc) except for the plate current
>> meter. For some reason the plate current meter on this unit
>> overshoots horribly (close to full-scale) and then oscillates
>> back and forth a few times (~+/- 200mA) before settling to
>> the key-down reading. Is this normal for this meter? The
>> grid current/multimeter doesn't do this, nor does just about
>> any other meter I ever seen.
>>
>> Thanks,
>>
>> Mike, W4EF...................................
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>
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