In a message dated 6/3/2006 2:03:52 PM Eastern Daylight Time, Gudguyham at aol.com writes: The very late SB-220s and HL-2200s had longer tune caps. Or Heathkit made them available on a replacement basis. I have seen several SB-220s with them. Where does the SB-221 fall into? If the late SB-220's had them then all the Sb-221's had them RIGHT?