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R: Re: LF: Re: Make your own tubes for a LF/MF PA?

To: <[email protected]>
Subject: R: Re: LF: Re: Make your own tubes for a LF/MF PA?
From: "[email protected]" <[email protected]>
Date: Tue, 14 May 2013 13:43:43 +0200 (CEST)
Reply-to: [email protected]
Sender: [email protected]
Nice to know the strange habits of Jeff!!!
Anyway the workshop of Claude is often matter of dreams..he's very 
keen making at home what big producers with big means do... the right 
tool, some ham ingenuity and a good knowledge background can do a lot!
Stefan in your qrl you can find a lot of tools ready for more than few 
µA emission from a car bulbe hihi
Enjoy use the iron! (not for clothes!)
73 Marco IK1HSS
----Messaggio originale----
Da: [email protected]
Data: 14-mag-2013 11.10
A: <[email protected]>
Ogg: Re: LF: Re: Make your own tubes for a LF/MF PA?

Hi Andre,

Thanks for the images, they are very nice! Maybe i will start some 
experiments with tubes some day.

At work we've done some simple experiments with car bulb (glass body 
destroyed) burning in vacuum (arround 1E-8 mbar). We applied about 
120V 
between the filament and case and actually got an emission current of 
a 
few 100 uA. That was exciting :-)

73, Stefan/DK7FC


Am 14.05.2013 09:21, schrieb Andre Guyé:
> For fun : Photos about the F2FO tubes. Tx and PA making by Jeff F6BWO
> [...]





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