LL1517 Audio Output Transformer

LL1517 is an audio output transformer for balanced or unbalanced drive. The transformer is built from two threesection coils, with primaries and secondaries separated by electrostatic shields, and a audio C-core of our own
production. The transformer is housed in a mu-metal housing.
The LL1517 has sufficient low copper resistance to meet broadcast specifications in a conventional drive
configuration, but is (as all output transformers) ideally used with mixed feedback drive circuits. (See separate paper
for mixed feedback design principles).