Atari Jet Fighter

jet.j5 = n82s131f
jet.k5 = n82s131f
24 pin prom socket at h5 was empty (manual shows that j5 and k5 replace it)
jet.r5 = n82s123b
jet.a4 = n82s129f
jet.j1 = n82s123b
jet.m1 = n82s123b

parts list show j1 and m1 to be the same code

board has 2 socketed 82s25 ram chips?

Second board

Etched in copper on top of board	JET FIGHTER	
					ATARI (C)75
					A004254
					MADE IN USA
					PAT NO.3793483
							

Read using new programmer
I think the Data I/O programmer above saved extra data
jet1.r5	82s123b		stamped	4251
jet1.j5	n82s131		stamped	4253
jet1.k5	n82s131		stamped	4253B
jet1.a4	n82s129f	stamped	4252	
jet.j1	n82s123B 	stamped	4250
jet.m1	n82s123B 	stamped	4250