[Amps] 'gettering 572B'

[Carl]

Yeah, but it made the power spec in final test!

Carl
KM1H


----- Original Message ----- 
From: "Alek Petkovic" <vk6apk at bigpond.com>
To: <donroden at hiwaay.net>; <amps at contesting.com>
Sent: Thursday, June 25, 2009 6:19 PM
Subject: Re: [Amps] 'gettering 572B'


> Ha ha. Try 7.1V for the AL-811H.
>
> No wonder there's such a good market for 811A and 572B tubes here in 
> Australia.
>
> 73, Alek
> VK6APK
>
>
> At 12:53 AM 26/06/2009, donroden at hiwaay.net wrote:
>>I think it is more important to keep filament voltage at or below 6.3vac.
>>Before modification, mine on a 30L-1 was over 6.9 standby and 6.7 under 
>>load.
>>
>>Don WA4NPL
>>
>>
>>
>>
>>Quoting Roy <royanjoy at ncn.net>:
>>
>> > Svetlana states its 572B has getter on the plates. Needs only to
>> be operated
>> > under power.
>> >
>> > 73,   Roy    K6XK
>> >
>> >
>> > _______________________________________________
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>> >
>>
>>
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>
>
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>
>
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