So YOU were the reason for our "extended" tour.Small world, eh?
I believe the Ranger was supposed to replace the Connie, or the Kittyhawk? Can't remember, when we were headed to Australia in 1979 and center-punched a Liberian oil tanker... That was something.
http://uss-rangerguy.com/collision.htm
Subic bay, Grande Island. "Memories are made of this"
The KSA992 is the part # F is the gain #. BU, TA, etc is the shipping type. Bulk, Tape loaded for machine installation.
KSA992FBU replaces 512-KSA1220AYS (Q9,Q10)
KSC1845FTA replaces 512-KSC2690AYS or KSC2690AYSTU (Q7,Q8)
Those transistors were picked for their power dissipation, Q7-10 make up the SEPP output stage and dissipate a decent amount of power. The KSC1845 and KSA992 do not have the power dissipation needed for those positions. Use 757-TTC004BQ for the 2SC1885 and 757-TTA004BQ for the 2SA912.