An interesting item this one, it's a PTS (Programmed Test Sources Inc) Frequency Synthesizer which AFAIK is a dual output between 1-620Mhz, if this sparks your interest you must read the next paragraph below:
I have spoken to PTS to get more information on this product and it turns out it was a custom design for Bruker. I did indeed remove it from a Bruker NMR Spectrometer we picked up the other day. PTS say it's not a full synthesizer because it requires additional IF inputs in order to make it work and they can't provide any technical details or support for it. There are no front-panel controls or displays, it's entirely operated through the control ports on the rear of the box.I believe the closest matching standard product is the PTS D620.
http://www.programmedtest.com/ptsd620.htmlit's exact model number is DL620V002SX-88
Given it's a modular design it maybe possible to re-purpose it or parts of it, or it might just be a big boat anchor!
It is a 19" rack box and weighs about 20kg so probably only worth shipping within the UK, there is an attached pic with the lid off
£65.00 including shipping to the UK.