1K8XFMR
1000 ohm to 8 ohm, .5 watt, Minature audio output transformer.

cat#     1K8XFMR

1/2 watt, Minature audio output transformer. 
1000 ohm to 8 ohm, Minature audio transformer. 
Used in PSK31 transceiver to soundcard interfaces
to isolate the sound card and transceiver.  

Also replacement audio output transformer for
hand-held transceivers. .5 wt.