IXYS IXTP01N100D for non-USA citizens Groupbuy - Page 4

ccliu · 02:46 PM

IXTP01N100D
Revintage (Sweden): 50
Bayermar (Germany) 20
Tony (Philippines):30
Gluca (USA):10
Bas (Netherlands): 32
qusp (Australia): 20
leadbelly (Canada): 10
vince (Italy): 10
vgeorge (greece): 10
danFrank (USA): 30
mach1 (Australia): 32
au-trovaille (France): 30
tonywong (Singapore): 20
ccliu (Taiwan): 20

TO92 DN2540
Tony (Philippines): 30
Gluca (USA): 10
Bas (The Netherlands): 32

Gluca · 22nd May 2011, 02:44 PM

IXTP01N100D
Revintage (Sweden): 50
Bayermar (Germany) 20
Tony (Philippines):30
Gluca (USA):10
Bas (Netherlands): 32
qusp (Australia): 20
leadbelly (Canada): 10
vince (Italy): 10
vgeorge (greece): 10
danFrank (USA): 30
mach1 (Australia): 32
au-trovaille (France): 30
tonywong (Singapore): 20

TO92 DN2540
Tony (Philippines): 30
Gluca (USA): 10
Bas (The Netherlands): 32

panos29 · 22nd May 2011, 03:16 PM

I would like to add 40 units of IXYS depletion mode fets for me too.

Great initiative! thanks!

Gluca · 22nd May 2011, 03:51 PM

IXTP01N100D
Revintage (Sweden): 50
Bayermar (Germany) 20
Tony (Philippines):30
Gluca (USA):10
Bas (Netherlands): 32
qusp (Australia): 20
leadbelly (Canada): 10
vince (Italy): 10
vgeorge (greece): 10
danFrank (USA): 30
mach1 (Australia): 32
au-trovaille (France): 30
tonywong (Singapore): 20
panons29 (greece): 40

TO92 DN2540
Tony (Philippines): 30
Gluca (USA): 10
Bas (The Netherlands): 32

ccliu · 22nd May 2011, 04:13 PM

Mine is omitted. Add back.

IXTP01N100D
Revintage (Sweden): 50
Bayermar (Germany) 20
Tony (Philippines):30
Gluca (USA):10
Bas (Netherlands): 32
qusp (Australia): 20
leadbelly (Canada): 10
vince (Italy): 10
vgeorge (greece): 10
danFrank (USA): 30
mach1 (Australia): 32
au-trovaille (France): 30
tonywong (Singapore): 20
panons29 (greece): 40
ccliu (Taiwan): 20

TO92 DN2540
Tony (Philippines): 30
Gluca (USA): 10
Bas (The Netherlands): 32

Bas Horneman · 22nd May 2011, 05:43 PM

Hi Gianluca,

Tell us some more about this pcb.

Cheers,
Bas

Gluca · 22nd May 2011, 07:23 PM

Ciao Bas

if you look at my schem at post #18 you will see the regulator on the left: it is a CCS shunting a big resistor and feeding the gate of a high voltage MOSFET: the CCS runs at 5mA and sets the voltage at the gate of the MOSFET, the regulated voltage at the source of the MOSFET is 4/5V below the gate voltage. Nothing fancy but it helps in knocking out +50dB of noise. On the right the CCS and tube (that we can eliminate from the PCB). When you use the mu-follower output form the CCS the power supply noise rejection is poor and you want it to be as clean as possible in preamps. So I thought that retaining the regulator on the PCB might be useful. In case you need the CCS for a long-tailed pair or cathode followers (ie on cathodes) the regulator should be bypassed.

let me post a semplified schematic.

Gluca · 22nd May 2011, 07:40 PM

REGULATOR+CCS ... schematic. See previous post for comments

danFrank · 23rd May 2011, 01:07 AM

IXTP01N100D
Revintage (Sweden): 50
Bayermar (Germany) 20
Tony (Philippines):30
Gluca (USA):10
Bas (Netherlands): 32
qusp (Australia): 20
leadbelly (Canada): 10
vince (Italy): 10
vgeorge (greece): 10
danFrank (USA): 30
mach1 (Australia): 32
au-trovaille (France): 30
tonywong (Singapore): 20
panons29 (greece): 40
ccliu (Taiwan): 20

TO92 DN2540
Tony (Philippines): 30
Gluca (USA): 10
Bas (The Netherlands): 32
DanFrank (USA): 30

I will take 30 of the TO-92 DN2540 also (as per above)... Thanks, Daniel

revintage · 23rd May 2011, 05:37 AM

Quote:

Originally Posted by danFrank

IXTP01N100D
reVintage (Sweden): 50
Bayermar (Germany) 20
Tony (Philippines):30
Gluca (USA):10
Bas (Netherlands): 32
qusp (Australia): 20
leadbelly (Canada): 10
vince (Italy): 10
vgeorge (greece): 10
danFrank (USA): 30
mach1 (Australia): 32
au-trovaille (France): 30
tonywong (Singapore): 20
panons29 (greece): 40
ccliu (Taiwan): 20

TO92 DN2540
Tony (Philippines): 30
Gluca (USA): 10
Bas (The Netherlands): 32
DanFrank (USA): 30
reVintage (Sweden) 10

I will take 30 of the TO-92 DN2540 also (as per above)... Thanks, Daniel

DN2540 as added to the list above.

22nd May 2011, 02:42 PM	#31
ccliu diyAudio Member Join Date: Oct 2007	IXTP01N100D Revintage (Sweden): 50 Bayermar (Germany) 20 Tony (Philippines):30 Gluca (USA):10 Bas (Netherlands): 32 qusp (Australia): 20 leadbelly (Canada): 10 vince (Italy): 10 vgeorge (greece): 10 danFrank (USA): 30 mach1 (Australia): 32 au-trovaille (France): 30 tonywong (Singapore): 20 ccliu (Taiwan): 20 TO92 DN2540 Tony (Philippines): 30 Gluca (USA): 10 Bas (The Netherlands): 32 Last edited by ccliu; 22nd May 2011 at 02:46 PM. Reason: add more

22nd May 2011, 05:43 PM	#36
Bas Horneman diyAudio Moderator Emeritus Join Date: Apr 2002 Location: The Netherlands Blog Entries: 18	Hi Gianluca, Tell us some more about this pcb. Cheers, Bas __________________ Boatanchor amps forum My "adventures" in audio

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22nd May 2011, 02:44 PM	#32
Gluca diyAudio Member Join Date: Nov 2004 Location: Back to Italy	IXTP01N100D Revintage (Sweden): 50 Bayermar (Germany) 20 Tony (Philippines):30 Gluca (USA):10 Bas (Netherlands): 32 qusp (Australia): 20 leadbelly (Canada): 10 vince (Italy): 10 vgeorge (greece): 10 danFrank (USA): 30 mach1 (Australia): 32 au-trovaille (France): 30 tonywong (Singapore): 20 TO92 DN2540 Tony (Philippines): 30 Gluca (USA): 10 Bas (The Netherlands): 32

22nd May 2011, 03:16 PM	#33
panos29 diyAudio Member Join Date: Dec 2001 Location: ATHENS, GREECE	I would like to add 40 units of IXYS depletion mode fets for me too. Great initiative! thanks!

22nd May 2011, 03:51 PM	#34
Gluca diyAudio Member Join Date: Nov 2004 Location: Back to Italy	IXTP01N100D Revintage (Sweden): 50 Bayermar (Germany) 20 Tony (Philippines):30 Gluca (USA):10 Bas (Netherlands): 32 qusp (Australia): 20 leadbelly (Canada): 10 vince (Italy): 10 vgeorge (greece): 10 danFrank (USA): 30 mach1 (Australia): 32 au-trovaille (France): 30 tonywong (Singapore): 20 panons29 (greece): 40 TO92 DN2540 Tony (Philippines): 30 Gluca (USA): 10 Bas (The Netherlands): 32

22nd May 2011, 04:13 PM	#35
ccliu diyAudio Member Join Date: Oct 2007	Mine is omitted. Add back. IXTP01N100D Revintage (Sweden): 50 Bayermar (Germany) 20 Tony (Philippines):30 Gluca (USA):10 Bas (Netherlands): 32 qusp (Australia): 20 leadbelly (Canada): 10 vince (Italy): 10 vgeorge (greece): 10 danFrank (USA): 30 mach1 (Australia): 32 au-trovaille (France): 30 tonywong (Singapore): 20 panons29 (greece): 40 ccliu (Taiwan): 20 TO92 DN2540 Tony (Philippines): 30 Gluca (USA): 10 Bas (The Netherlands): 32

22nd May 2011, 07:23 PM	#37
Gluca diyAudio Member Join Date: Nov 2004 Location: Back to Italy	Ciao Bas if you look at my schem at post #18 you will see the regulator on the left: it is a CCS shunting a big resistor and feeding the gate of a high voltage MOSFET: the CCS runs at 5mA and sets the voltage at the gate of the MOSFET, the regulated voltage at the source of the MOSFET is 4/5V below the gate voltage. Nothing fancy but it helps in knocking out +50dB of noise. On the right the CCS and tube (that we can eliminate from the PCB). When you use the mu-follower output form the CCS the power supply noise rejection is poor and you want it to be as clean as possible in preamps. So I thought that retaining the regulator on the PCB might be useful. In case you need the CCS for a long-tailed pair or cathode followers (ie on cathodes) the regulator should be bypassed. let me post a semplified schematic.

23rd May 2011, 01:07 AM	#39
danFrank diyAudio Member Join Date: May 2005 Location: California	IXTP01N100D Revintage (Sweden): 50 Bayermar (Germany) 20 Tony (Philippines):30 Gluca (USA):10 Bas (Netherlands): 32 qusp (Australia): 20 leadbelly (Canada): 10 vince (Italy): 10 vgeorge (greece): 10 danFrank (USA): 30 mach1 (Australia): 32 au-trovaille (France): 30 tonywong (Singapore): 20 panons29 (greece): 40 ccliu (Taiwan): 20 TO92 DN2540 Tony (Philippines): 30 Gluca (USA): 10 Bas (The Netherlands): 32 DanFrank (USA): 30 I will take 30 of the TO-92 DN2540 also (as per above)... Thanks, Daniel