*** COLLINS 51S-1 - TRANSFORMER ASSY T12 - p/n 278-0640-000 B 278-0640-00 B X-209-2 ***

Up for sale, transformer assembly 14.5 - 15.5 MHz bandpass, pass band 1.1 MHz @ 3dB

Genuine COLLINS 51S-1 part in 100% working condition

Part No. Collins 278-0640-000 B 278-0640-00 B X-209-2

On schematic diagram T-13

(page 6-11 "Collins instruction book for 51S-1")