| Re: destruction test on el156 [message #62574 is a reply to message #10011] |
Mon, 10 May 2010 11:01   |
SASAudioLabs
Messages: 17
Registered: May 2009
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Chancellor |
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| PakProtector wrote on Wed, 07 November 2007 18:57 |
hey-Hey!!!,
I had to smile at your screen wattage testing. I once ran 85W through the g2 of a 4E27 I was testing when I forgot to put B+ on the anode. It survived OK...
As to the differences, which data are the 100V/100 mA data comming from? I assume your measurements? I can't offer anything concrete, but a good sounding power pentode with a 60W plate is not going to get a very close look from me under most circumstances, eh?
cheers,
Douglas
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It is quite obvious they simply posted 6550 curves to the El-156.
If you are going to pop in and get cocky, I could care less about your little 75 watt plate dissipation 4E27 tube. I have worked, professionally, with much mightier tubes than that pip squeak tube. How big do you want to go Doug? 
The point is that the EL-156 tube is more rugged than the specs indicate, so the tube is run conservatively. Sometimes tubes get specs that they cannot meet without overloading.
Cheers.
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