Click on his name and the page with all his details will open up. Look at his posts. Pick the most recent post and go to that page and on that page post a message directed to him. He will most likely follow that thread and see your message!
Cal, his pm mailbox here is full and when I tried his gmail email adress
for some reason it bounces. I sold him a few mosfets and included a little
extra in the package but it's fragile and need to tell him before he opens it!