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Paul Carmody Carrera build - Completed and audibly Elated!
Paul Carmody Carrera build - Completed and audibly Elated!
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Old 11th September 2021, 01:57 AM   #21
prairieboy is offline prairieboy  Canada
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Paul Carmody Carrera build - Completed and audibly Elated!
Quote:
Originally Posted by schwantzi View Post
Yeah, I actually did use a prestain, which made a big difference but the end result was still a little blotchy. I've also read that using a spray toner can help reduce the blotchy effect although I didn't try it. Maybe next time I'll try the toner fas I really like working with Baltic Birch.
Try shellac, particularly the darker varieties if you want a colour shift. Buy only good quality shellac, and ensure it's fresh. Just don't let your wife put a glass with alcohol on it. :-)
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Old 13th September 2021, 10:26 AM   #22
frangus is offline frangus  Australia
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Location: Sydney
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Originally Posted by Flaxxer View Post
It is actually simple to get good results with your DIY builds .... you just have to lose the wife! LOL
Or nag her until she accepts the beauty of home brewed craftsmanship
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Old 13th September 2021, 10:49 AM   #23
lucadvt is offline lucadvt  Italy
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Location: Cremona
@schwantzi

Can I ask you the dcr of the three inductors?
In the schematic only the inductance is indicated.

Thank you

Luca
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Old 15th September 2021, 07:21 AM   #24
zman01 is offline zman01  Bangladesh
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Join Date: Feb 2011
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Paul Carmody Carrera build - Completed and audibly Elated!
The Carrera impedance curve, shows a relatively higher impedance in the 1KHz and beyond region (images attached for reference). The Carrera impedance is around 15 ohms at 20KHz, and the Troels design is possibly around 18 ohms at 20 KHz.

Having a higher impedance throughout most of the mid and upper ranges - would it have any impact on the type of amplifier used?
Attached Images
File Type: jpg Carrera impedance and phase.jpg (79.9 KB, 37 views)
File Type: jpg Troels - SEAS W15CY001_ HIQUPHON OW1.jpg (94.4 KB, 37 views)
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Old 15th September 2021, 02:12 PM   #25
MrHifiTunes is offline MrHifiTunes
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Quote:
Originally Posted by zman01 View Post
The Carrera impedance curve, shows a relatively higher impedance in the 1KHz and beyond region (images attached for reference). The Carrera impedance is around 15 ohms at 20KHz, and the Troels design is possibly around 18 ohms at 20 KHz.

Having a higher impedance throughout most of the mid and upper ranges - would it have any impact on the type of amplifier used?
You could put a 75uF cap and 5R6 resistor across the connection terminals. It will flatten the impedance and phase curve.

Impedance will be around 4 ohm across the freq range.
I assume tube amps can benefit from it.
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