I have a batch of what I believe are Heathkit Transistors. Does anyone know where I can find a database or catalog of Heathkit transistor ID codes and their corresponding "Real World" numbers? I have learned so far that the numbers printed on the transistor's case refer to their parts assembly codes, for construction of the old style Heathkit project kits. In those kits the old manuals had tables of the Heathkit House numbers and equivilent components I.E. 417- 801 = 3N5906 Thanks!