Re: [sdiy] Kärmes tube oscillator and instrument amplifier

[Neil Johnson]

Reminded me of when I was at EMI Hayes (fond memories).  Round the  
back there were some pretty scary valves alright - mostly copper  
though!  Some of the older radar stuff looked right out of the set of  
Frankenstein.

Neil

On 20 Jan 2008, at 04:35, Travis Shire wrote:
>> If you want to do some valve pR0n then this site is amazing:
>>
>> http://www.tubecollector.org/about.htm
>>
> Check out the specs on that water cooled triode.
>       Filament voltage 31.5 - 34V
>       Filament current 440 - 470A
>       Anode voltage 20kV dc max
>       Total emission 100A
>       Anode current 20A max
>       Continuous anode dissipation 150kW max
>       µ 40 - 48
>       Impedance 800 - 1200 ohms
>       Grid current 4.5A max
>       Grid power 8kW max
>       Frequency 30MHz max
>       Inter electrode capacitances
>       Grid to filament 101pF
>       Anode to filament 6pF
>       Anode to grid 51pF
>
>
> Speechless.......

--
http://www.njohnson.co.uk