Tranformer Electrostatic Shield Connection

[dawsonaudio]

Hi,

I am swapping some of my Lundahl 1538xl input transformers with some EA2622 transformers in two of my eight channel api 312 mic preamp box.  The lundahls have a case ground but no electrostatic shield pin.  The ea2622's have case ground and electrostatic shield pins.  I know the lundahls have an internal electrostatic shield without a pin connection.  Should I connect the ea2622's electrostatic shield pin to the case ground point or is there another location where this pin should be connected?

Thanks for any help here.

Nate

 

[AndreasSchwarz]

Hello Nate,
the Lundahl 1538 has the shield on Pin 8:
http://www.lundahl.se/wp-content/uploads/datasheets/1538_8xl.pdf

Regards Andreas

 

[dawsonaudio]

Thanks for the correction.  What I meant was what to do with the case ground on the EA2622?

http://www.capi-gear.com/catalog/images/gallery/2622/2622-specs.pdf

The Lundahl doesn't have a case ground pin.  Not sure if I should leave it disconnected on the API 312 circuit.

 

[Evertide]

Just try it first without...

Avery ground connection should be as short as possible.