Siemens / Auso Siemens ELA 75-31 Line Equalizers early 1970's

Rare pair of Auso Siemens (Italian branch of Siemens Austria) line equalizes from the early 1970's.

These are broadcast quality and put out a massive amount of gain (to make up for those long cable lines for tv / radio broadcasting - pre satellite).

Extremely hard to find, a quick google search will tell you all I know.

I have four of these total. Two racked like in the pictures above and two in a 19" rack (listed separately).

Free shipping in the USA. Pickup encouraged - these are heavy!