Digital board

U1	NS 55AH		Voltage regulator?
U2			Metal can with heatsink
U3	DS75161AN	IEEE488 transceiver
U4	P8291A S4516	IEEE488 controller
U5	DS75161AN	IEEE488 transceiver
U6,U7	MM74HC245AN
U8	HN27C64		8k EPROM
U9	TC5564APL-15	8k CMOS RAM
U10	MC74HCAN	NAND x 4
U11	TL7705ACP	Reset chip
U12	MM74HC138N	1-of-8 decoder
U13	SN74HC74N	D-type latch x 2
U14	MC74HC161AN	
U15,U21	MC74HC112
U16	HD63B09EP	Microprocessor
U17	MM74HC244AN	8-bit buffer
U18	HD63B40P	Programmable Timer
U19	MM74HC04N
U20	MM74HC244N
U22	GAL22V10B	Programmable logic, from Lattice.
U23	MC74HC00AN
U24,U25	HD63B21P	Parallel I/O
U26	P80C51BH 7031	Microcontroller

Y1	Fox F1100E 16MHz oscillator

BT1	Panasonic battery, likely dead.


Analogue board

U1	MPQ6700
U2	
U3,U4	LF444CN
U5,U7	ADG221KN
U6,U17	AD7524JN
U8,U11	LT1014CN
U9	LM311N
U10	
U12	PMI REF01H 
U13	ADG508AKN
U14,U15	PMI DAC08EQ
U16	SN74HC374N
U18	MM74HC138N	1-of-8 decoder
U19	
U20,U21	DM74ALS374N