Need Amp For 90-0-90 V DC

Drafance007 · 4th October 2003, 08:16 PM

I Have one good toroidal transformet (taken form HILL dx1500 AMP) and i would like to use it for a high power amp. Only thing that i found on net is Edwin Paij (Belgium) amplifier -
http://users.swing.be/edwinpaij/welcome.htm
Anyone made this amp ???
http://users.swing.be/edwinpaij/ampli_mosfet_360_w.htm

roddyama · 4th October 2003, 09:37 PM

I deleted the schematic because it is copy-right protected. The forum cannot allow copy-righted material to be posted without the express permission of the author.

skaara · 4th October 2003, 10:00 PM

Who posted it?

roddyama · 4th October 2003, 10:24 PM

Quote:

Originally posted by skaara
Who posted it?

Drafance007 had posted it in his post above. You can find the schematic on the authors own web page which can be reach with the links Drafance007 post as well.

moamps · 4th October 2003, 11:01 PM

Quote:

Originally posted by Drafance007
I Have one good toroidal transformet (taken form HILL dx1500 AMP) and i would like to use it for a high power amp.

Hi,

Look for another schematics on site
http://steve.sky.net.ua/a_index.htm
(QSC and CROWN)

Regards

stokessd · 4th October 2003, 11:26 PM

It's the wrong forum, but some 6c33c's in a ciclotron configuration would also work very well on +-90.

Sheldon

peranders · 5th October 2003, 06:31 AM

+-90 volts are rather much because some transistors must be 250-300 volt types, also many caps must take 100 volts are even more.

The design is very conventional. I think the french guy got inspired of some Elektor amp which had zeners in the diff stage.

I recoemmend also that this amp has DC protection! 90 volts DC in you speakers will get smoke before the fuses blow....

Drafance007 · 5th October 2003, 06:07 PM

There is schematic of Anthony Holton on the page submitted above. It looks like a good amp. Did anyone bilt it? I think I would not work on 90-0-90V.

Sorry for attaching the picture in first post without author permission.

millwood · 5th October 2003, 06:35 PM

has anyone tried a souped up MOSFET Citation 12? I love Nelson's Citation because it is simple and performs very well. I would imagine if you redesigned the thing, use beefier devices, and add one driver stage (for paralleled output devices), it will still perform well.

Any thoughts?

Nelson Pass · 5th October 2003, 09:10 PM

Quote:

Originally posted by millwood
has anyone tried a souped up MOSFET Citation 12? I love Nelson's Citation because it is simple and performs very well. I would imagine if you redesigned the thing, use beefier devices, and add one driver stage (for paralleled output devices), it will still perform well. Any thoughts?

Jam says he is sending me a Citation 12 to do something with.
I don't think the previous Citation 12 project I did was
particularly popular, but it's hard to resist the lovely little
chassis and supplies the original provides.

On the other hand, I cannot imagine a +/- 90 Volt amplifier
in it.

4th October 2003, 08:16 PM	#1
Drafance007 Account Disabled Join Date: Nov 2002	Need Amp For 90-0-90 V DC I Have one good toroidal transformet (taken form HILL dx1500 AMP) and i would like to use it for a high power amp. Only thing that i found on net is Edwin Paij (Belgium) amplifier - http://users.swing.be/edwinpaij/welcome.htm Anyone made this amp ??? http://users.swing.be/edwinpaij/ampli_mosfet_360_w.htm

4th October 2003, 09:37 PM	#2
roddyama diyAudio Moderator Emeritus Join Date: Jan 2002 Location: Michigan	I deleted the schematic because it is copy-right protected. The forum cannot allow copy-righted material to be posted without the express permission of the author. __________________ Rodd Yamashita

5th October 2003, 06:31 AM	#7
peranders Electrons are yellow and more is better! diyAudio Member Join Date: Apr 2002 Location: Göteborg, Sweden	+-90 volts are rather much because some transistors must be 250-300 volt types, also many caps must take 100 volts are even more. The design is very conventional. I think the french guy got inspired of some Elektor amp which had zeners in the diff stage. I recoemmend also that this amp has DC protection! 90 volts DC in you speakers will get smoke before the fuses blow.... __________________ /Per-Anders (my first name) or P-A as my friends call me

5th October 2003, 06:07 PM	#8
Drafance007 Account Disabled Join Date: Nov 2002	What about Anthony Holton There is schematic of Anthony Holton on the page submitted above. It looks like a good amp. Did anyone bilt it? I think I would not work on 90-0-90V. Sorry for attaching the picture in first post without author permission.

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4th October 2003, 10:00 PM	#3
skaara diyAudio Member Join Date: Jun 2002 Location: Europe, Slovenia	Who posted it?

4th October 2003, 11:26 PM	#6
stokessd diyAudio Member Join Date: Nov 2002 Location: Grantham, NH	It's the wrong forum, but some 6c33c's in a ciclotron configuration would also work very well on +-90. Sheldon

5th October 2003, 06:35 PM	#9
millwood Account Disabled Join Date: Apr 2003 Location: US	has anyone tried a souped up MOSFET Citation 12? I love Nelson's Citation because it is simple and performs very well. I would imagine if you redesigned the thing, use beefier devices, and add one driver stage (for paralleled output devices), it will still perform well. Any thoughts?