Here's the best info I have found on the RBA,B,C. I now own 4 of them. TNX, Mike , K4TQF http://www.radioblvd.com/WWII-PostWar%20Hamgear.htm -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://mailman.qth.net/pipermail/milsurplus/attachments/20160725/6c255804/attachment.html>