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el503 power tube

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f2a

  • Jr. Member
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el503 power tube
« on: 12 Dec 2008, 06:39 pm »
Hi El503 working with 250 v and 100 ma  and i used this tube in  my new diy . out put  power in class ab = 40w / Amplification factor=13 /Ri=5.4 k. low voltage and high current in plate  . Beautiful  chrome cap .also   I used c3m for drive .i don’t have socket for c3m !! :cry: sound was  amazing!!   :D
. 5931 from Sylvania in power supply   provide best result in sound for this project .  :D
« Last Edit: 12 Dec 2008, 09:13 pm by f2a »
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