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Old 9th May 2008, 05:47 AM   #1
GK is offline GK  Australia
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Default EL509 as a CF

Does anyone here have experience with the EL509 as a power cathode follower?

Iím assessing the suitability of using a quad of them parallel connected with fixed plate and screen supplies of 75V and 150V respectively and a bias current of 1.6A (provided by a RET current source) to deliver ~10W into 8 ohms as a SEP OTL.

Do these tubes draw significant G1 current? If so, how much under the above described operating conditions?

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Old 9th May 2008, 09:25 AM   #2
GK is offline GK  Australia
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Scrap that. I think I'll use a bunch of 6AS7G instead.
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