Anyone recognize this transformer manufacturer?

[lilstripe]

Anyone recognize or know how to determine who the manufacturer of this HV tube power transformer is from this label?

It was in an off name amp a buddy had and I wanted to reverse engineer it and figure out the voltages and such but he sold it before I got the chance. I really liked the look of it. This pic is all I have left to go by.

In case the picture gets blurry on here, it reads:
CT-9031
EIA 606 SB4
MS 2-40-3-3
93187045

Thanks for any insight you might have.
lilstripe

 

[Wigwam Jones]

I do not recognize it, but do you happen to know what sort of equipment it was originally used in? Sometimes I have figured out certain transformers by digging into the specs on the equipment itself.

 

[Tom Bavis]

606 is the EIA code for Schumacher Transformer - perhaps they would have records of it if it's not too old. Do you have an idea of the manufacture date?

 

[JonSnell Electronic]

Fender use an EIA code.

 

[PRR]

Tom got it already; but for future puzzles:

> EIA 606

EIA issued maker-codes. Problem is that EIA 606 is also a wiring spec. "EIA 606 transformer" finds links that look authoritative.

"The "606" EIA code is for Woodward-Schumacher Electric. They are still in business as Schumacher Corp."
Help Identify Power Transformer and Hookups | Audiokarma Home Audio Stereo Discussion Forums

"606 is Schumacher"
https://www.thegearpage.net/board/index.php?threads/dating-fender-transformers.765737/#post-8933341

"Woodward-Schumacher 606"
Commonly Seen EIA Codes