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Old 8th May 2013, 09:53 AM   #1
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Default MC step-up transformer

Hi All

Looking at getting a new Cartridge maybe MC, but my Phono stage is MM only.
I like the Phono Stage I have so I would need a step Up Transformer, so do any of you here have experience with this

MC to mm Audio Stereo Step Up Cartridge Transformer | eBay

or are there other options at reasonable money out there?

Ps current thinking on a Cartridge DL-103

Thanks
Garry
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Old 8th May 2013, 12:59 PM   #2
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Couldn't see any mention of the most important parameter - core material. Why would you choose this in preference to a Lundahl or a Tribute?
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Old 8th May 2013, 01:23 PM   #3
oshifis is offline oshifis  Hungary
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http://www.nixiekits.eu/Downloads/Ue...-Messungen.pdf

I think the DC resistance is to high. I would go for a Lundahl or a Sowther...
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Old 8th May 2013, 02:02 PM   #4
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Or Jensen or Tamura.
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Old 8th May 2013, 03:25 PM   #5
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Quote:
Originally Posted by analog_sa View Post
Couldn't see any mention of the most important parameter - core material. Why would you choose this in preference to a Lundahl or a Tribute?
If you have time.....make your own mc transformer.

I made mine without a winding machine. It's easy to do but it's a lot of work. Just buy the best core you can find (probably a cobalt amorph core is the best and cost between 15 and 25 each)
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Old 9th May 2013, 02:22 AM   #6
andyr is offline andyr  Australia
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Quote:
Originally Posted by GazzaFloyd View Post
Hi All

Looking at getting a new Cartridge maybe MC, but my Phono stage is MM only.
I like the Phono Stage I have so I would need a step Up Transformer, so do any of you here have experience with this

MC to mm Audio Stereo Step Up Cartridge Transformer | eBay

or are there other options at reasonable money out there?

Ps current thinking on a Cartridge DL-103

Thanks
Garry
Why not use a head amp instead of a SUT?

AKSA (who have their own forum on these pages) offer the "Paris" head amp - JFET-based, battery powered. You can find details here:

::: Aspen Amplifiers :::

(scroll down the page)

I have one - IMO it's one of the best. It's also replaced SUTs for a few of my friends. (And despite what Hugh says in the blurb, it was called the "Paris" ... because it "gives good head"! )


Regards,

Andy
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Old 9th May 2013, 08:49 AM   #7
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Quote:
Originally Posted by esltransformer View Post
If you have time.....make your own mc transformer.

I made mine without a winding machine. It's easy to do but it's a lot of work. Just buy the best core you can find (probably a cobalt amorph core is the best and cost between 15 and 25 each)
I have no promlem doing a build, Have you got any plans?

Thanks
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Old 9th May 2013, 08:51 AM   #8
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Quote:
Originally Posted by andyr View Post
Why not use a head amp instead of a SUT?

AKSA (who have their own forum on these pages) offer the "Paris" head amp - JFET-based, battery powered. You can find details here:

::: Aspen Amplifiers :::

(scroll down the page)

I have one - IMO it's one of the best. It's also replaced SUTs for a few of my friends. (And despite what Hugh says in the blurb, it was called the "Paris" ... because it "gives good head"! )


Regards,

Andy
this looks interesting, but still pushes the budjet

Garry
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Old 9th May 2013, 10:02 AM   #9
SY is offline SY  United States
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I am a huge advocate of good step-up transformers, and it's what I use. But... not here. The DL103 has a large DCR for a moving coil (50 ohms or so). That means you can have losses in the treble due to the leakage inductance of all but the very best (read: expensive) SUTs. I would second the use of a transformerless head amp. IMO, a bipolar transistor input is a better solution than an FET for this application, but I gather that you're not going to do your own design or a scratch-build?
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Old 9th May 2013, 10:31 AM   #10
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Quote:
Originally Posted by GazzaFloyd View Post
I have no promlem doing a build, Have you got any plans?

Thanks
The right material Metglas magnaperm 2714AF
http://www.manz-electronic.com/downl...212708f721b788

or you can use from Vacuumschmelze the 6025F (=the same as 2714AF)

This firm sells it:
MES Manz Electronic Systeme OHG | Softmagnetic products | Semiconductors | Busbars | Military and Space | Heat sinks

or the 6025F:
Online Catalog & Consulting

I used the 2714AF (MP3210P4AF) 40 primary windings and 600 secondary windings
Click the image to open in full size.
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