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Old 21st August 2007, 12:08 AM   #1
Jeb-D. is offline Jeb-D.  United States
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Default Boosted Triode mode?

http://www.edn.com/article/CA302240.html

Anyone tried this? Looks interesting, but you you would need more iron on the amplifier
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Old 21st August 2007, 01:52 AM   #2
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Hi,

Here's some more boosted triode results. No need for more iron and done heretical

http://geek.scorpiorising.ca/GeeK_Zo...18638#msg18638

Cheers!
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Old 21st August 2007, 02:28 AM   #3
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When I first saw the article in EDN I was skeptical, so I tried it. The result? A fried 6L6GC. The author of the article "built" the circuit in a simulator. The simulator may not "see" the glowing screen grid. See post # 18 in this thread:

Triode Trick

And:

6L6 Design in EDN Mag

And:

Tube article in EDN

I believe that Geeks "boosted triode" is a different design, similar to what I called "dual drive" where the screen and control grids are both driven (at different DC potentials). It works, but the results are dependent on the type of output tube.
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