Voltage or current?  I don't think plate voltage changes.

Steve

----- Original Message ----- 
From: "Steve" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Tuesday, March 18, 2014 16:13
Subject: Re: Tuning the 811H


> The main meter that reads grid or plate voltage that is selectable with 
> the
> front panel switch.
>
> If you get the terminals reversed, the pitch on your VCO will go down
> instead of up, just make sure you check it before you button up the amp.
> And, treat the thing with respect, there's a lot of voltage that can be
> floating around, around 1800 volts I think on the plates.  Don't trust the
> fact that the bleeder resistors are supposed to drain it.
>
> Steve, K8SP
> ----- Original Message ----- 
> From: "Steve Dresser" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Monday, March 17, 2014 8:01 PM
> Subject: Re: Tuning the 811H
>
>
>> Steve,
>>
>> Which meter did you put the VCO across?  Should both meter terminals be
>> isolated from ground?
>>
>> Steve
>>
>> ----- Original Message ----- 
>> From: "Steve" <[log in to unmask]>
>> To: <[log in to unmask]>
>> Sent: Monday, March 17, 2014 17:15
>> Subject: Re: Tuning the 811H
>>
>>
>>> Personally, I don't tune mine for maximum output.  If you do, you may be
>>> drawing too much grid current.  I have a voltage-controlled oscillator
>>> hooked across the meter on mine.   I tune the plate for a dip and turn
>>> the
>>> load control just until the output starts increasing.
>>>
>>> Steve, K8SP
>>>
>