*** COLLINS 51S-1 - SWITCHING DISK - RF TURRET ASSEMBLY -  p/n 547-2661-004  S4 S5 ***

Up for sale, disk switching - hard to find - Collins receiver 51S-1

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

Part No. Collins 547-2661-004

On schematic diagram S4 and S5

(page 6-38 "Collins instruction book for 51S-1")

What you see is what you get