CLASSICCMP(a)trailing-edge.com wrote: Hi I built projects from Poly-Pak's but you must realize that this dates you. I found that about 75% of the parts were useful but then, they were no better than the other major source then ( Radio something or other ). Dwight

Remember them... I did business with them. There was a great difference in quality in transistors then and now often being not so much non fuctional but range of beta and leakages. I know some are going whats that? transistors avaibale now are far more consistant and offer far better characterestics from the days to the 2n13xx series, and the 2n35xx from years later. By current standards those were very cruce devices and teh 2n13xx were the germainium (ft 5mhz and leakey as hell with parameter drift with temperture that was unreal). I know I have loads of those old parts! Allison