[Amps] Perfect Tube for your Next Amp Project

[Alek Petkovic]

Yeah, I remember the radio station in my home 
town in country Western Australia in the early 
70's. The station, 6NA on 918kHz used 833As in 
the AWA transmitter for modulator and finals. 
(807 Oscillator and 813 buffer) My uncle, 
VK6XW,  was station engineer. I remember seeing a 
few pulls in the spares cupboard that were all silvered over like that.

The pics of that 4-1000A brought back the memory.

73, Alek
VK6APK


At 09:00 AM 12/04/2010, Carl wrote:
>The very HV used in some pulse circuits causes 
>the glass to do that. Ive heard the chemical reason but dont remember it.
>
>Carl
>KM1H
>
>
>----- Original Message ----- From: "Alek Petkovic" <vk6apk at bigpond.com>
>To: <amps at contesting.com>
>Sent: Sunday, April 11, 2010 7:10 PM
>Subject: Re: [Amps] Perfect Tube for your Next Amp Project
>
>
>That's an interesting one. Can't use that one for a lamp.
>
>What causes a tube to go like that? Surely it is
>not done in the production process.
>
>73, Alek
>VK6APK
>
>
>
>At 04:49 AM 12/04/2010, JTB  ô¿ô wrote:
>>See this EBay listing.
>>
>>Notice it says good cosmetic condition !!!!
>>
>>370361411724
>>
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> From sunny Binningup, Western Australia
>
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>
>
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>
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 From sunny Binningup, Western Australia

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http://www.qrz.com/db/vk6py 





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