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|23rd April 2010, 03:48 PM||#1|
Join Date: Dec 2001
Location: leiden, physically that is...
I would like to ask for your help and confirmation. I've bought a couple of second hand opt's but have very little info about them. I've tried to map the windings but i'm not confident.
The trannies where bought as advertised for KT88/EL34 tubes and having a primary impedance of 6K. The core (laminations) seems to be something like ei96 (8,5/7/3 cm).
My personal guess would be a pp trannie with a primary of about 6k, 25 - 30 Watt output rating. secndary aimed at 8R. Below is a doc of the measurements.
Any advise, confirmation is welcome. I'm sort a thinking pp 2a3 given that if it's push pull it would be triode mode and then that is first on the list before the 50w pp kt88 monster.
oh, what a beautifull day
I wanna go out and play!
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