This is a very old hp power supply with HPIB control capability. It is 20V and 5A max. There is a fan to cool the set and thus it is a bit noisy when using this supply. Here is the work done to service it:
- There is lots of dirty stick on the fan and thus cleaning is a must. Also remove the pcb assembly and all item from the case to do 100% cleaning the IPA.
- Oh RIFA again and crack on surface, so leaking a bit is the norm!
- Added front supply connector with sink in type banana socket. Do not want it to extend out as the front panel is also nothing much protruding from the surface.
- No calibration is required as it is still quite accurate.
Rifa caps crack 
Fan sticky with black oily dirt 
AC filter caps replaced 
Added front output sockets inside photo – washer need to cut on one side to fit the space