MFJ 401 b nerfd 2 years ago I have a Mfj 401 b econo keyer 2 it comes with the box and I got it to do cw but never followed through with it so now I am just cleaning out some stuff. The post MFJ 401 b first appeared on Hamshack. Share this: Click to share on X (Opens in new window) X Click to share on Reddit (Opens in new window) Reddit Click to share on Facebook (Opens in new window) Facebook Click to share on Tumblr (Opens in new window) Tumblr Click to share on Pinterest (Opens in new window) Pinterest Click to email a link to a friend (Opens in new window) Email
