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API 312 transformers

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ilfungo

Well-known member
Joined
Apr 25, 2009
Messages
1,363
Location
ITALY
Hi
I want to buy :

4x 2622 transformers
4x 2503 transformers

In Europe
Offers , suggestions?
Thanks!
 

Ricardus

Well-known member
Joined
Dec 2, 2018
Messages
1,072
Location
Upstate NY
From what I understand for Europeans to buy from the US now is super expensive. Tarriffs and such. There must be someone in Europe who has an equivalent.
 

kazper

Well-known member
Joined
Jan 2, 2007
Messages
1,706
Location
Snohomish, WA USA
I'm sure Sowter makes an equivalent. Not sure if/how that would help. It's never been cheap to go from US to Europe, international shipping costs are insane now.

I did a Cinemag group buy years ago and 75% of them went international. Maybe there is a market potential for someone.
 

mjrippe

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Joined
Dec 27, 2011
Messages
2,575
Location
Brooklyn, NY
Interesting. Never saw those guys before. But I don't think they have any API clones. Looks like they're trying to clone Neve more than anything.
Their 3503 is a replacement for the 2503. The 2545 would likely be fine for input.
 

Ricardus

Well-known member
Joined
Dec 2, 2018
Messages
1,072
Location
Upstate NY
Their 3503 is a replacement for the 2503. The 2545 would likely be fine for input.
Yeah, I should have known with the 503 in the part number.

I was more getting at the fact that the PCB footprint on the input transformers is more the Carnhill style than the 2622 style.
 

igs

Member
Joined
Apr 18, 2009
Messages
14
Location
Europe
Have you used their transformers?

Can anyone vouch for them? I am curious to try their Neve inductor types when I build a Helios mic pre/EQ.
We use them now. The quality is great.
Here's the newest design guide.
 

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  • UTM_Catalog0A.pdf
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lukas

Well-known member
Joined
Sep 29, 2010
Messages
165
Location
Poland
...UTM...this is IGS - Poland...whats the core we use them in nevish transf - oryginal shape, and mumetal, and winding schematics?
 
Last edited:

MisterCMRR

Well-known member
Joined
Jul 1, 2019
Messages
122
Location
Ventura, CA
An interesting range of models - but where are specs? Turns ratio and DC winding resistance is just scratching the surface.
 

karloff70

Well-known member
Joined
Aug 2, 2007
Messages
266
Location
London
Have you used the UTM 2555, anyone? Thinking of putting it on the front of a Roberts tube pre. Either that or a Sowter 1585. Any opinions on which wouId sound bigger? The UTM sure IS bigger IoI
 

mjrippe

Well-known member
Joined
Dec 27, 2011
Messages
2,575
Location
Brooklyn, NY
An interesting range of models - but where are specs? Turns ratio and DC winding resistance is just scratching the surface.
If you go to the web site and click on an item you get a bit more info. Here is their spec for the 3503:
Ratio: 1:1, 1:2, 1:3
Impedance: 75Ω, 300Ω, 600Ω
Frequency response @15Ω source, 600 load: +/- 0.5 dB 15 Hz to 80 kHz (Ap)
Primary Inductance: 0.5H+0.5H
Secondary Inductance: 0.5H+0.5H
Total DC Resistance PIR: 20Ω+20Ω
Total DC Resistance SEC: 20Ω+20Ω
Max Level: @50Hz: +30 dBu
 

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