I am looking for: 1. 6, 7, or 8 -- 9 sided knobs used in Hallicrafter Radio's in the early 60's - like the SX 117; 2. A 100kc Crystal like used on the SX 101 crystal calibrator; 3. and last a Tungsol RCA or GE 6550 tube. Thanks... 73's Larry F. AF6LF