Set of 10 original WW2 vintage mica terminal boards that are left over from the production of ARC-5 and SCR-274-N military aircraft receivers. These are unused in very good condition. They have been in storage since the early 1940's. These have 8 posts and 2 ground tabs. The ground tabs are soldered to the threaded mounting posts so you will have a good ground connection. These are very small. The size is 0.8465 inch (21.5mm) X 0.6880 inch (17.48mm). They will fit 4 X 1/2 watt carbon resistors very nice. This sale is for 10 mica terminal boards.