- AF4K Crystals by WD8DAS -


Steve Johnston, WD8DAS, has reopened AF4K Crystals!

There are two ways to order - the new online store and via email.

Click here to visit the AF4K Crystals online store

Or click the link below to send an email inquiry:

orders@af4k-crystals.com



Click here to read reviews of AF4K Crystals

Click here to learn about the types of radio crystals and their history

Click here to watch the historical film "Crystals Go to War"