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-   -   tube temperatures (http://www.diyaudio.com/forums/tubes-valves/77694-tube-temperatures.html)

woodturner-fran 13th April 2006 06:38 PM

tube temperatures
 
Hi there,

I searched and searched for this and believe it or not, couldn't unearth any info!!!

I have 12AU7, 12AX7 and ECL86 (6GW8) tubes. What kind of temperatures do the tubes reach?

Any ideas, someone out there must have a good idea on this!

TIA,
Fran

SY 13th April 2006 07:00 PM

Which part of the tube? The cathode, plate, and glass envelope all will have very different temperatures.

rdf 13th April 2006 07:00 PM

it's a start:

http://www.pearl-hifi.com/06_Lit_Arc...be_Coolers.pdf

woodturner-fran 13th April 2006 07:27 PM

Thanks for the link!!

Also - its the glass envelope temp I mean...


from the lit. the 12AX7 seems to max out at about 110degC. I suspect the ECL86s will be significantly higher... maybe upto 150 - 180 degC

thanks,

Fran


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