UTM INDUSTRY audio transformers - from Poland - EU

[audiosway]

We don't have a direct replacement for a UTC O-12, but you can use our versatile UTM2546 input transformer.

I found a p-12 on ebay. Just put in an order for an output tranny for the 1176 build though. Thanks again!

 

[Rob Flinn]

Any plans to do a Universal Audio 176 o/p transformer ? The one with the ratio taps on it.

 

[audiosway]

How long does shipping to the US normally take? Just curious since I made an order and that's all that I'm waiting on for my 1176 build.

 

[C12VR]

Personal wish that I think other people would like to see as well:
high-ratio (1:10-1:15) input transformer with high level capability for tube preamps

 

[JMan]

How long does shipping to the US normally take? Just curious since I made an order and that's all that I'm waiting on for my 1176 build.

I am wondering about this as well. I never received any sort of shipping confirmation after payment, so I have no idea if my transformers are on the way or what the approximate timeframe is in which I might expect them...

 

[audiosway]

I am wondering about this as well. I never received any sort of shipping confirmation after payment, so I have no idea if my transformers are on the way or what the approximate timeframe is in which I might expect them...

I ordered on June 29th I believe. I'm in California. I just got notification from a Fedex email that it had been shipped. So, I would say about 2-3 weeks for shipment and probably 7-10 days to arrive. Just a guestimate.

I'll let you know once mine arrives.

 

[L´Andratté]

Personal wish that I think other people would like to see as well:
high-ratio (1:10-1:15) input transformer with high level capability for tube preamps

+1

 

[toolshedamps]

Me too! +1....... or several.

Or, 1:4............. 600R:10K ish. w/Mu-metal can.

 

[igs]

Personal wish that I think other people would like to see as well:
high-ratio (1:10-1:15) input transformer with high level capability for tube preamps

Like this?

UTM2510

 

[rock soderstrom]

Like this?

UTM2510

I guess this will work for mic to grid applications as well?

 

[L´Andratté]

I guess this will work for mic to grid applications as well?

Yes, I saw that too, but it is described as line input, mic duty is not mentioned, I presumed for a reason that I am too ignorant to understand (pri inductance?)

 

[JMan]

Pretty excited about what just arrived in the mail!

 

[JMan]

I do have a quick question for Igor. It seems that the windings on my new UTM 3581s (above) are red/green : blue/black. Since these are 1:1, I guess it doesn't matter which side is primary and which is secondary, but can you tell me which lead is which in terms of polarity?

 

[Heikki]

I'm trying to make a KiCad PCB footprint for the UTM2xxx transformers. Can anyone tell me the spacing between the pins and required PCB hole diameter for the pins.

 

[igs]

I'm trying to make a KiCad PCB footprint for the UTM2xxx transformers. Can anyone tell me the spacing between the pins and required PCB hole diameter for the pins.

Please download the UTM catalog.

 

[Heikki]

I'm slow so it took some time for me to interpret the spacing between pins correctly. I didn't realize the picture was showing both pin rows. Still I'm not sure what the pin diameter is.

 

[igs]

I can attach a Gerber footprint file. Will it help?

 

[Heikki]

I can attach a Gerber footprint file. Will it help?

Please do. It will most likely help.

 

[igs]

Please do. It will most likely help.

Here you go. There are two formats, Gerber and low Protel.

 

[JMan]

It seems that the windings on my new UTM 3581s (above) are red/green : blue/black. Since these are 1:1, I guess it doesn't matter which side is primary and which is secondary, but can you tell me which lead is which in terms of polarity?

Since I didn't get an answer here and I can't find the 3581 in the UTM catalog (it was only recently added to the web shop, so maybe official documentation is still forthcoming, or maybe I'm looking at an outdated version of the catalog), I went ahead and gave it a test to figure out the phase of the coils. Hopefully this is useful for anyone else who might be ordering these!