DC Controlled AC Dimmer?

imix500 · 8th January 2006, 05:41 PM

Hello all, I'm in search of a 0-10v dimmer for 115v. I've scoured the web but haven't found much. I did find a Vellemen kit that will do what I need for about $30, but I wanted to go the diy route if I can. Thanks!

Sir Trefor · 8th January 2006, 09:25 PM

what do you mean DC controled AC dimmer? What are you trying to dim?

imix500 · 9th January 2006, 01:56 AM

Meaning 0-10v dc control voltage in, 115v ac out in proportion. Run of the mill theatrical type dimmer (except it's not 0-28v I'm looking for)- though I can't seem to find any schematics.

pinkmouse · 9th January 2006, 09:45 AM

I've got schematics for a Celco E-rack around somewhere, (rebadged Pulsar), I'll have a look when I get home tonight. However, wouldn't it be easier just to pick up a small 3 or 4 way pack s/h. Likely to cost less than building, and more likely to get past health and safety guys.

Oh, and where does the 28V come from? Never, ever seen that before.

imix500 · 9th January 2006, 11:43 AM

Hey pinkmouse, If you can find them that would be great. Buying a old used eta pack or the like is a possibility my mind but I'm looking for a single channel that only has to dim one 25W lamp. Going waay back before amx-192 even, all kleigl and colortran systems were 0-28v.

In my hometown at our civic center we have 3 kleigl scr (the ugly beige cubes) dimmer systems of 12, 24, and 72 channels. 3, 7, ans 12kW. I have to recalibrate those dern things twice a year.

pinkmouse · 9th January 2006, 11:48 AM

And I thought Strand were awkward for using -10V.

imix500 · 9th January 2006, 11:54 AM

Heh, yeah I'm not sure where that selected control v came from. I'm sure there's a story. Probably involving a few drunken stagehands up here.

8th January 2006, 05:41 PM	#1
imix500 Proud Union Member diyAudio Member Join Date: Mar 2004 Location: Nashville, TN	DC Controlled AC Dimmer? Hello all, I'm in search of a 0-10v dimmer for 115v. I've scoured the web but haven't found much. I did find a Vellemen kit that will do what I need for about $30, but I wanted to go the diy route if I can. Thanks!

8th January 2006, 09:25 PM	#2
Sir Trefor diyAudio Member Join Date: Sep 2004 Location: somewhere in California	what do you mean DC controled AC dimmer? What are you trying to dim? __________________ "This is just my 'one cent'; I haven't got two to give."

9th January 2006, 09:45 AM	#4
pinkmouse diyAudio Moderator Join Date: Apr 2002 Location: Chatham, England	I've got schematics for a Celco E-rack around somewhere, (rebadged Pulsar), I'll have a look when I get home tonight. However, wouldn't it be easier just to pick up a small 3 or 4 way pack s/h. Likely to cost less than building, and more likely to get past health and safety guys. Oh, and where does the 28V come from? Never, ever seen that before. __________________ Al I conceive of nothing, in religion, science or philosophy, that is more than the proper thing to wear, for a while. Charles Fort

9th January 2006, 11:48 AM	#6
pinkmouse diyAudio Moderator Join Date: Apr 2002 Location: Chatham, England	And I thought Strand were awkward for using -10V. __________________ Al I conceive of nothing, in religion, science or philosophy, that is more than the proper thing to wear, for a while. Charles Fort

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9th January 2006, 01:56 AM	#3
imix500 Proud Union Member diyAudio Member Join Date: Mar 2004 Location: Nashville, TN	Meaning 0-10v dc control voltage in, 115v ac out in proportion. Run of the mill theatrical type dimmer (except it's not 0-28v I'm looking for)- though I can't seem to find any schematics.

9th January 2006, 11:43 AM	#5
imix500 Proud Union Member diyAudio Member Join Date: Mar 2004 Location: Nashville, TN	Hey pinkmouse, If you can find them that would be great. Buying a old used eta pack or the like is a possibility my mind but I'm looking for a single channel that only has to dim one 25W lamp. Going waay back before amx-192 even, all kleigl and colortran systems were 0-28v. In my hometown at our civic center we have 3 kleigl scr (the ugly beige cubes) dimmer systems of 12, 24, and 72 channels. 3, 7, ans 12kW. I have to recalibrate those dern things twice a year.

9th January 2006, 11:54 AM	#7
imix500 Proud Union Member diyAudio Member Join Date: Mar 2004 Location: Nashville, TN	Heh, yeah I'm not sure where that selected control v came from. I'm sure there's a story. Probably involving a few drunken stagehands up here.

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