York Probe Sources Ltd supply quality field emission sources to fit a wide range of electron beam systems.

Our Microscope Products

YPS Ltd is a high-tech manufacturer of electron optical devices and for over 10 years has manufactured, developed and commercialised innovative products in the field of electron-optics. With a combined 80 years experience within the field, we recognise our customer's needs and requirements in both quality and service and endeavour to offer both to the very highest standards.

Our History

Established in 1997, York Probe Sources Ltd has gone from strength to strength. Rooted in a strong background of research, we work closely with our customers to ensure our in-house manufactured solutions are right for you. Our approach ensures confidentiality of design, whilst combining innovation in everything we do.


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    Latest News

    YPS Distributors in USA

    Ted Pella, Inc, Redding, CA, are the exclusive distributors of YPS (York Probe Sources Ltd) Schottky Field Emission Sources.

    OBE Annoucement

    Professor Mohamed El-Gomati has been made an OBE (Most Excellent Order of the British Empire) in the New Year's Honors List.

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