Successors for Toshiba's IGBT's GT20D201-GT20D101 used e.g. in Elektor's CFB Amp - diyAudio
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Old 29th March 2010, 06:14 PM   #1
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Default Successors for Toshiba's IGBT's GT20D201-GT20D101 used e.g. in Elektor's CFB Amp

Who knows more about suited successors?

Some URLs:
Compact Power Amplifier from Elektor
WTB: IGBT toshiba GT20D201/GT20D101
Wzm.HEXFET - Giesbertsa (elektor 950077) - Do It Yourself - Forum Audio - Audiostereo.pl
http://www.diyzone.net/modules.php?o...quote=1&mod=50
Attached Images
File Type: jpg gt_20d101-2.jpg (103.8 KB, 528 views)
File Type: jpg IGBT CFB TOS ELEKTOR.jpg (47.7 KB, 549 views)
File Type: gif IGBT ELEKTOR 600211_2.gif (41.0 KB, 530 views)
File Type: jpg IGBT amp Electr.World.jpg (142.3 KB, 527 views)
File Type: gif IGBT VFB elektor.gif (40.8 KB, 521 views)

Last edited by tiefbassuebertr; 29th March 2010 at 06:18 PM.
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Old 30th March 2010, 01:03 AM   #2
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Well, since R25 = R24 seems like you got a pretty easy conversion to N Quasi.
I'm not entirely sure I'm reading the Ohm values right, they are kinda grainy...
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Old 21st September 2010, 05:51 PM   #3
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any news?
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Old 22nd September 2010, 04:37 AM   #4
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No, R25=15 ohms and R24=150 ohms. The output stage is configured for voltage gain. This is the same as Elektor's HEXFET amp and it tends to oscillate. The fix published later has however, been successfully tried by some others. I have the boards all assembled and the outputs blown but have not tried the fix yet.
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