http://lmbheeger.com/crownroyalseries.aspx CR442 - Note from Diz, W8DIZ: CR442 is a tight fit but a cool small case. CR532 CR632 http://mouser.com http://www.mouser.com/LMB-Heeger/Enclosures/Enclosures-Boxes-Cases/_/N-5g3p?P=1z0zl4jZ1z0z2q1 Mouser # 537-CR-442 - Note from Diz, W8DIZ: CR442 is a tight fit but a cool small case. Mouser # 537-CR-532 Mouser # 537-CR-632 Hammond Manufacturing http://www.hammondmfg.com/pdf/1591XXS.pdf http://mouser.com Part No. 546-1591XXSBK Note from Jim Ewing, N4TMM: "One thing important is that the posts in the box that accept the screws for holding down the cover take up space, but not much. So you have to get a nail file or similar and file of just a little bit of each corner of the circuit board to make it fit snugly in the box." Hammond Manufacturing http://www.farnell.com/datasheets/1496320.pdf http://www.newark.com Part No. 29830PSLA