Neumann OEV transformers

[MonoCutter]

Hello to all,

I have received four Neumann OEVs and they have no transformers installed. After some searching I found a picture on the internet showing the original transformers.

My questions:
Does anyone know which Haufe transformer is the Neumann 09424?
And conversely, can anyone tell me which Neumann number the RK202 has?
The chances are not so great that I will find exactly the right ones, so suitable offers are also welcome.

Does anyone have one of the bypass switches as a spare part? (I have the original switch cap).

Thank you very much,
Dennis

 

[timtom]

Here is the datasheet. There was also a unbalanced Version of the OEV. I can check my OEV's in the next days and see which transformers are installed in them.
I guess there are both 1:1 transformers.
Check the PEV 500 build https://groupdiy.com/threads/pev500-neumann-pevb-pevc-in-api500-format.83439/ probably the transformers used there will work in the OEV as well.

 

[beatnik]

Schematic for the OEV - unbalanced

It's not just difficult to find the original transformers, but also to find a modern replacement that would fit the PCB and cassette module.

On the other hand if you are going to mount the modules in a 19" case you could fit the transformers outside the cassette

 

[MonoCutter]

Many thanks to both of you!


My EQs are unbalanced and it's important to me that they sound great. The original transformers don't necessarily have to be installed. I have many new and old Pikatron and Haufe transformers, cards and modules. I may have to compare several transformers with each other.


Ideally, the transformers should be installed in the cassettes. But they could theoretically also be installed in the frame. The plan is to build a complete Danner console.