Re: [TCML] Is this 2,3kW Triode suitable for a VTTC?

["Teslalabor" <teslalabor@xxxxxxxxxxx>]

Hi John,

thanks! Think I will buy a TB5 Tube. Then I will use my 5,4kV plate 
transformer + voltage doubler maybe.
By the way, my VTTC only runs with the voltage doubler properly (1 MOT + 3uF 
cap + diode).
I tried to feed the VTTC with AC only from a MOT but the output is very 
poor. This means, the sparks are much longer when fed with 2kV from the 
doubler instead of 2kV from a MOT. What am I missing? Is it due to the 
shunts in the MOT and the caps in the doubler deliver some sort of pulsed 
power to the coil?

Regards
Stefan

----- Original Message ----- 
From: "Futuret" <futuret@xxxxxxx>
To: <tesla@xxxxxxxxxx>
Sent: Friday, January 14, 2011 11:12 PM
Subject: Re: [TCML] Is this 2,3kW Triode suitable for a VTTC?


Stefan,

My guess is yes, you can replace your tube with this one.
To see a real benefit, you'll probably need to increase your
plate voltage.

Nice work on  the 833A VTTC project....

Cheers,
John










-----Original Message-----
From: Teslalabor <teslalabor@xxxxxxxxxxx>
To: Tesla Coil Mailing List <tesla@xxxxxxxxxx>
Sent: Fri, Jan 14, 2011 4:50 pm
Subject: [TCML] Is this 2,3kW Triode suitable for a VTTC?


Hello,

after my first 833A VTTC is a big success, making 23" sparks, I ask myself

if the following tube is also suitable:



http://www.radiomuseum.org/tubes/tube_tb52500.html



This TB5 has a Plate-Voltage of 7kV and a power of 2,3kW! Would it be

possible to simply replace the 833A in my VTTC by this TB5 Triode? Of course

I would nee a bigger filament transformer (6,3V, 32.5Amps)...



Regards

Stefan



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