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Subject:
From:
Steve Dresser <[log in to unmask]>
Reply To:
For blind ham radio operators <[log in to unmask]>
Date:
Sat, 25 Oct 2008 11:22:29 -0400
Content-Type:
text/plain
Parts/Attachments:
text/plain (96 lines)
John,

It's a nice amplifier, and I plan to hang onto it for a good long time.  I 
know it's a bit large, but at least I can get inside it and work on things 
if I have to.  And it's a lot cheaper than the solid state amplifiers.
Steve

----- Original Message ----- 
From: "John Miller" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Friday, October 24, 2008 23:18
Subject: Re: Tuning Tube Amps Today


> That's how I did it with my AL811H I used to have and I had someone check
> the meter and I was told I was good. Selling that thing was really one of
> the stupidest things I ever did but oh well, maybe in a year or so I'll
> afford another amp. I'm still waiting to see if my friend's SB-200 becomes
> available, I'd take one of those too for now if the price was right since 
> I
> don't need it daily but once in a while, I really wish I had it.
> ----- Original Message ----- 
> From: "Steve Dresser" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Friday, October 24, 2008 9:47 PM
> Subject: Re: Tuning Tube Amps Today
>
>
>> Yes, Phil, I agree, but I'd still like to know if I'm running a 
>> reasonable
>> amount of grid current.  Maybe some day I'll get someone to watch the
>> meter
>> and see how far off base I really am.
>>
>> Steve
>>
>> ----- Original Message ----- 
>> From: "Phil Scovell" <[log in to unmask]>
>> To: <[log in to unmask]>
>> Sent: Friday, October 24, 2008 16:58
>> Subject: Re: Tuning Tube Amps Today
>>
>>
>>> That should do it, Steve.  Sounds good to me.  Whatever works.
>>>
>>> Phil.
>>> K0NX
>>>
>>>
>>>
>>> ----- Original Message ----- 
>>> From: "Steve Dresser" <[log in to unmask]>
>>> To: <[log in to unmask]>
>>> Sent: Friday, October 24, 2008 2:30 PM
>>> Subject: Re: Tuning Tube Amps Today
>>>
>>>
>>>> Phil,
>>>>
>>>> I have a TW1 connected at  the output of my AL-811H.  I tune the plate
>>>> control for maximum power, as indicated by the highest pitch, and turn
>>>> the
>>>> grid control counter-clockwise until I hear the slightest decrease.  I
>>> don't
>>>> know if that's the best way, but I've never been told there's anything
>>> wrong
>>>> with the way I sound, and the amplifier hasn't gone up in smoke.
>>>> Ideally,
>>>> I'd like to have an oscillator connected to the meter so I could 
>>>> monitor
>>> the
>>>> grid current, but I haven't hooked it up yet since the other method
>>>> seems
>>> to
>>>> be working.
>>>>
>>>> Steve
>>>>
>>>> ----- Original Message ----- 
>>>> From: "Phil Scovell" <[log in to unmask]>
>>>> To: <[log in to unmask]>
>>>> Sent: Friday, October 24, 2008 16:09
>>>> Subject: Tuning Tube Amps Today
>>>>
>>>>
>>>> > How are people going about tuning tube amplifiers for their HF radios
>>>> > these
>>>> > days?
>>>> >
>>>> > Phil
>>>> > K0NX
>>>> >
>>>>
>>>
> 

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