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F-16C/D EU Low Voltage Power Supply Unit (LVPSU)

Technical Information

Catalogue No: C0882
Category: Head-Up Display [HUD]
Object Type: Power Supply/Conditioner
Object Name: F-16C/D EU Low Voltage Power Supply Unit (LVPSU)
Part No: K0656SOCN7506-00079/B
Serial No: 1577-23
Manufacturer: Roband Electronics
Division: Unknown
Platform(s): F-16C/D Fighting Falcon 
Year of Manufacture: circa 1985
Width (mm):
Height (mm):
Depth (mm):
Weight (g):
Location: Main Object Store

L.V. Power Supply Unit
PN K0656SOCN7506-00079/B
Mfr. PN 0A3358-04
Ser No 1577-23
Mfr K1286
Contract No. F33657-80-C-0326


The HUD EU has comprehensive video mixing and scan conversion and self contained weapon aiming capability.

The units were made by Roband in the UK and Eldec in the USA and were common for the F-16C/D and LANTIRN programmes.

The Low Voltage Power Supply was a major part of the F-16A/B and C/D Head Up Display systems Electronics Unit and variants of that design. The LVPSU takes in aircraft power at 115V 400Hz and 28VDC and conditions it to the voltages required by the internal electronics typically 5VDC and +/-20VDC. The box locates on the opposite side of the EU coldwall from the Circuit Boards such that heat is conducted into that coldwall and cooling is by means of filtered cold air blown through the wall. There were two suppliers of these Power supplies; the majority was made by Eldec in the USA but a number were second sourced from Roband in the UK. The unit has a large ‘D’ type Cannon connector into the EU and externally the Aircraft connector ‘J2’ and most units also have a Test connector ‘1J5’. A more shallow but wider LVPSU was fitted to the F-16A/B whereas that on the F-16C/D type goes the full height of the EU.

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