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Old 14th September 2006, 04:25 PM   #11
Fuling is offline Fuling  Sweden
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And from below:
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Old 14th September 2006, 04:26 PM   #12
Fuling is offline Fuling  Sweden
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With cover (unfinished):

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Old 14th September 2006, 04:28 PM   #13
Fuling is offline Fuling  Sweden
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And the PSU. The toroid and the heatsink/tagboard makes the HV supply, the rest is for the heaters:
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Old 14th September 2006, 04:30 PM   #14
Fuling is offline Fuling  Sweden
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My matching active crossover, built with discrete JFETs on tagboards. 12dB/oct 90Hz Linkwitz-Riley.
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Old 14th September 2006, 04:32 PM   #15
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Inside view:
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Old 14th September 2006, 10:35 PM   #16
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Maybe this is a little late since you've already built the amp... but you might find this interesting:

http://www.pmillett.com/Books/lockhart.pdf

An example of extreme cathode and screen grid feedback...

Pete
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Old 15th September 2006, 09:01 AM   #17
Fuling is offline Fuling  Sweden
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Thank you for the very interesting url!
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Old 15th September 2006, 08:50 PM   #18
Fuling is offline Fuling  Sweden
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I believe Ive forgotten to post schematics of the power amps:

Edit: In the real version there is no voltage divider for the screen grids, the grids goes straight to B+ through 1,5kohm carbon composite grid stoppers.
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