Wehnelt apertures, tantalum

Made from 0.004" tantalum foil. Replaceable tantalum apertures for some microscopes (AMRAY and Philips). They improve the performance of the electron gun.

Technical Data

Updated: 28-02-2026
Code Hole Size Pack Size Availability Price Updated: 28-02-2026
EMS49020-TA 200um Each No ETA $257.00 AUD
EMS49030-TA 300um Each No ETA $257.00 AUD
EMS49040-TA 400um Each No ETA $295.00 AUD
EMS49050-TA 500um Each No ETA $221.00 AUD
EMS49075-TA 750um Each No ETA $221.00 AUD
EMS49100-TA 1000um Each No ETA $221.00 AUD

* Availability Explanation

X weeks – the estimated lead time, based on the average time taken previously to fill orders from this particular supplier. Lead times are from when we receive your order until when we fill your order. For delivery times, please see shipping information below.

In Stock – Plenty of stock on the shelf, ready to ship.

No ETA – our supplier has advised they cannot provide an accurate ETA. Generally there is some issue with supply, and it may be more than 6 months.