Characteristics of HP-IL Transformers?

[Martin Hepperle]

(09-03-2020 02:09 PM)Dave Frederickson Wrote:  ...
From what I can find, Valor was acquired by Pulse Engineering in 1998. Pulse Engineering's world headquarters was in my zip code. The signage along the road disappeared 5-10 years ago, but I think there's still a sales office nearby. Want me to go knock on their door?

Probably not worth the hassle - if they changed ownership, they probably shed their old identity and knowledge w.r.t. this old stuff.

I am currently looking into datasheets for ISDN telecom transformers - there seem to be many with multiple center tap coils.