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Kef Corelli - Tapped inductor value ?

 
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fmacarty
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Joined: 28 Jan 2011
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PostPosted: Fri Jan 28, 2011 11:40 am    Post subject: Kef Corelli - Tapped inductor value ? Reply with quote

Hi,
I have a project to rebuild my crossovers from scratch as one has crashed.
But i don't find the value of the tapped inductor described on the schematic.
http://www.hifiloudspeakers.info/Anatomy/Crossovers/DN17SP1052Corelli/Gallery/pages/corelli.htm

Any info from the Kef engineers ?

Thanks,
Fabrice

ps : i have posted the same message in the diy but i guess this section here is more appropriate...
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Frater Perdurabo
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Joined: 23 Jan 2011
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Location: Ridgewood, New Jersey USA

PostPosted: Wed Feb 02, 2011 3:51 am    Post subject: Reply with quote

I'm planning to rebuild mine, as well. But usually crossover rebuilds only replace capacitors; changing inductors means matching dcr as well as inductance. What do you hope to gain?
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ColinR
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Joined: 31 Jul 2004
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PostPosted: Wed Feb 02, 2011 11:22 am    Post subject: Reply with quote

Quote:
What do you hope to gain?


To replace the broken bit!
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Frater Perdurabo
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PostPosted: Wed Feb 02, 2011 11:33 am    Post subject: Reply with quote

Sorry - I misunderstood. I'll measure the values in mine when I take them out.
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speakerguru
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Joined: 18 Nov 2005
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PostPosted: Tue Jun 07, 2011 9:54 pm    Post subject: Reply with quote

Did you ever get to the bottom of this? I don't recall any tapped inductor in the Corelli. We were always encouraged to avoid them for production reasons. Obviously the Model 104 and 104aB used one for the "contour" control and I used one, for a limited time, in the midrange section of Model 105|4, as an auto-transformer. Other than that, I don't think so.

Has the circuit shown in the posted schematic been wrongly traced? Shouldn't the Corelli tweeter section have been an aB type as well? It was the same era as the 104aB.
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ColinR
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PostPosted: Wed Jun 08, 2011 12:09 am    Post subject: Reply with quote

Quote:
Did you ever get to the bottom of this


Have sent circuit and pictures of early PCBs to your "hotmail" account Smile .
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speakerguru
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PostPosted: Wed Jun 08, 2011 7:25 am    Post subject: Reply with quote

Thanks, Colin.

I obviously didn't have much to do with this model.
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