X-over for single sided tweeter.

Jonathan Bright · 30th May 2008, 09:24 PM

I have a pair of small single sided tweeters. They are from a German Norde Mende "radio gram' bought in the mid '60s. They are around 60mm square and about 9mm thick. The frame is brown plastic and they have a circular bronze coloured metal grid covering the diaphram. I have a suitable circuit to drive them from an old "Audio" (USA) article. They were used in conjunction with an elliptical bass-mid that looks a lot like an Isophon unit.

What crossover frequency would they run at? Thanks Jonathan.

moray james · 30th May 2008, 11:41 PM

talking to the folks at Shackman as they deal with gear of that vintage.
http://shackman-electrostatic-loudsp...reromanus.net/

Jonathan Bright · 31st May 2008, 08:20 AM

Sorry that first post was confusing. I meant single sided ELECTROSTATICS as opposed to push-pull. Hope that makes more sense.

Jonathan Bright · 31st May 2008, 08:33 AM

Thanks moray. A really interesting site.

moray james · 2nd June 2008, 07:44 PM

this fellows site as he may be able to assist you.

http://209.85.135.104/translate_c?hl...oehrenbude.de/

30th May 2008, 09:24 PM	#1
Jonathan Bright diyAudio Member Join Date: Feb 2004 Location: Queensland	X-over for single sided tweeter. I have a pair of small single sided tweeters. They are from a German Norde Mende "radio gram' bought in the mid '60s. They are around 60mm square and about 9mm thick. The frame is brown plastic and they have a circular bronze coloured metal grid covering the diaphram. I have a suitable circuit to drive them from an old "Audio" (USA) article. They were used in conjunction with an elliptical bass-mid that looks a lot like an Isophon unit. What crossover frequency would they run at? Thanks Jonathan. __________________ "It was the Spring time of the year when aunt calls to aunt like mastodons across the frozen waste." P.G. Wodehouse.

30th May 2008, 11:41 PM	#2
moray james diyAudio Member Join Date: Aug 2003 Location: Calgary on the Bow	you might try... talking to the folks at Shackman as they deal with gear of that vintage. http://shackman-electrostatic-loudsp...reromanus.net/ __________________ moray james

31st May 2008, 08:20 AM	#3
Jonathan Bright diyAudio Member Join Date: Feb 2004 Location: Queensland	Sorry that first post was confusing. I meant single sided ELECTROSTATICS as opposed to push-pull. Hope that makes more sense. __________________ "It was the Spring time of the year when aunt calls to aunt like mastodons across the frozen waste." P.G. Wodehouse.

31st May 2008, 08:33 AM	#4
Jonathan Bright diyAudio Member Join Date: Feb 2004 Location: Queensland	Thanks moray. A really interesting site. __________________ "It was the Spring time of the year when aunt calls to aunt like mastodons across the frozen waste." P.G. Wodehouse.

2nd June 2008, 07:44 PM	#5
moray james diyAudio Member Join Date: Aug 2003 Location: Calgary on the Bow	you might also try... this fellows site as he may be able to assist you. http://209.85.135.104/translate_c?hl...oehrenbude.de/ __________________ moray james


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