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Re: 6LU8 Push-pull power amp and other builds

PostPosted: Fri Nov 13, 2015 6:46 am
by tony
Danny Eulogio SS amp 2nd build redlines....

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ready for power soak testing...

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Re: 6LU8 Push-pull power amp and other builds

PostPosted: Fri Nov 20, 2015 10:56 am
by tony
setting up for output trannie bias current...
i installed the to 0.33 ohm resistors to have dog ears so i can clip test leads easily..

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readings accross the resistors for 50mA idle current...
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final reading of 29 watts from an initial reading of 19 watts..
so that the output stage now dissipates 10 watts..
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a look inside with the lid on...
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Re: 6LU8 Push-pull power amp and other builds

PostPosted: Sat Dec 19, 2015 7:28 pm
by tony
TubeTeK Brute 60.....6C33 pp amp, driven by 6LU8 with 6J9 as input triode....this amp weighs in at over 35kgs....

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Re: 6LU8 Push-pull power amp and other builds

PostPosted: Wed Feb 17, 2016 7:59 pm
by tony
first chassis fabrication run for 2016, day 1......this is for a 4D32 SET amp good for about 12 watts, using crazy drive, 6DT8 input tube, 6AU5 cathode follower....

tools, tools tools....
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hole saws galore....
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two holes 38mm...

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more holes....
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bottom plate punched out with 70mm holes.....
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tomorow, finishing....

Re: 6LU8 Push-pull power amp and other builds

PostPosted: Fri Feb 19, 2016 8:25 pm
by tony
Day2 of fabrication...all holes punched out, masking tapes removed,
sanding with 220 grit and 400 grit to remove all sharp edges....
after degreasing, will go to the powder coating shop...

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