Also in 1956, Mullard announced the OC44 and OC45 transistors, the latter seems to be described all over the Web as "the first RF transistor", although I think this only applies to Europe. In reality these two devices would be more accurately termed IF transistors. There is an ongoing market for the OC45 on eBay because it was used in some early guitar effects units ("fuzz boxes") and purists insist that only the original will do. There are even people who talk about the "germanium sound", and do not mean poor signal-to-noise ratio!
Här finns lite : iaf benen
http://www.radiomuseum.org/tubes/tube_oc45.htmlHär har du en pdf med info om flera oc blandanat OC45
http://www.datasheetarchive.com/pdf-dat ... 50513.html