LL5801 is a 1+1 : 2 audio isolation transformer originally designed for Kungliga Dramatiska Teatern (Royal Theater) in Stockholm. Sorry, no data sheet. A modern replacemen is LL1527 or LL1588. LL5801 pinout and usage:
Pin configuration (transformer seen from component side with label readable)
4, 3, 2, 1
LL5801
8, 7, 6, 5
(I am sorry, but I am unsure about orientation, as we have no samples left in stock.
There is connection between pins 1 and 2, but not between pins 5 and 6)
LL5801 Usage (1:1)
in+ pin 1
in- pin 4
connect pin 2 + 3
out+ pin 6
out- pin 7
ground pin 5+8 (Faraday shield)
