I have a SB-200 with a homemade but nice looking chassis cover that screws down over the F and power supply areas. I'd like to have an original one if possible. 73, gary Gary H. Harmon, Jr. / K5JWK 6003 Archwood San Antonio, TX 78239-1504 210.657.1549 h / 210.884.6926 c "Retirement - Everyday is a Saturday, except Sunday."