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AT-HA-5000 schematic
AT-HA-5000 schematic
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Old 19th September 2018, 09:14 PM   #101
EUVL is offline EUVL  Europe
diyAudio Member
Join Date: Oct 2003
If you have followed our UTHAiM project, you would be aware of our positive experience of using lateral power MOSFETs as output devices.
UTHAiM -- Just for Fun
Apart from many advantages sich as negative tempco and hence simple biasing, it has real drive power and bass control.

You could actually turn the AT into a much simpler circuit but with similar distortion signature by using the UTHAiM output stage here instead.
The attached spice file is simulation only and have not been test built.
But it gives you a good idea how it may look like, without the need to use UHC-MOSFETs.
The distortion spectrum is essentially the same as that of post #99, rather surprisingly.

Attached Files
File Type: asc AT Clone Lateral Public V0a THD.asc (6.5 KB, 6 views)
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