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Old 25th July 2012, 01:37 PM   #1
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Default Hybrid power amp

I made this hybrid power amp,i am very happy about it.I will test it very soon.
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Old 25th July 2012, 03:39 PM   #2
DF96 is offline DF96  England
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My guess is that when you test it you will find that the input pair are rather unbalanced, so you may get some 2nd-order distortion from them. Measure the voltage drop across the 22R emitter resistors.
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Old 25th July 2012, 06:37 PM   #3
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I have thewked the schematic a bit , the one in the picture was built a long time ago,this one i think is mutch better.
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Old 25th July 2012, 07:21 PM   #4
DF96 is offline DF96  England
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Two questions:
1. why put up a circuit which is not what you currently have?
2. have you actually built either of them, or just simulated?
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Old 25th July 2012, 07:24 PM   #5
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I simulated them, i have some tv tubes radio transformers i only need some resistors and capcitors,i wanted to build i t but i quit.
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Old 25th July 2012, 07:25 PM   #6
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Only 80V in the plate of a 6L6 in series with 560 ohms???? Too low voltage from my point of view. Too down in the Knee.
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Old 25th July 2012, 07:25 PM   #7
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The schematics are purely my design from scratch.
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Old 25th July 2012, 07:27 PM   #8
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Quote:
Originally Posted by Osvaldo de Banfield View Post
Only 40V in the plate of a 6L6???? Too low voltage from my point of view. Too down in the Knee.
It is in the experimental fase,i will make some modifications for higher voltages,at this voltage it puts about 10w if i remember well.
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Old 25th July 2012, 07:32 PM   #9
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What strange cicuit... Why not to take the symmetrical signal to 6L6 directly from differential pair collectors? Then avoid the phase splitter?
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Old 25th July 2012, 07:35 PM   #10
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You don't seem to have reached the experimental phase yet; you are still in the design phase.
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