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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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In Reply to: RE: Removing top cover... posted by Mike K on September 15, 2020 at 22:31:24:
Air alone would not dissipate the high heat from the output transistors in this class "A" design. You need heatsinks.
The transistors are mounted on a (aluminum?) bar. The bar is coupled to the cover with thermal paste. The cover is ribbed to work as a large heatsink.
If the cover is hot it is working properly.
Remove the cover, the transistors will overheat.
Musical Fidelity did this interesting design to maintain a modern slim look.The alternative would be to have a taller cover drilled for ventilation. And then large internal heatsinks for the transistors.
Hope this makes sense.
Cheers!
Jonesy
"I know just enough to get into trouble. But not enough to get out of it."
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Follow Ups
- RE: Removing top cover... - Jonesy 06:00:27 09/16/20 (2)
- Thank you, I now understand the reasoning ... - Mike K 08:37:08 09/16/20 (1)
- RE: Thank you, I now understand the reasoning ... - Jonesy 09:00:26 09/16/20 (0)
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