Chuck Guzis wrote: On 20 Dec 2006 at 11:21, James B. DiGriz wrote: I'll dig through my old literature. I recall that Motorola offered an "Experimenter's Kit" of about 6 of their TO-99 packaged milliwatt RTL circuits with some non-digital application notes. Anyone still have the little booklet that came with this kit? Cheers, Chuck ---------------------------------------------------- I know that RCA also had a nice set of Application Notes for introducing RTL. I'm not certain I still have them - came out in 1962. Some of the early RCA data books still had them inside. Maybe one of our data book collectors has copies. If so, I'll be glad to scan them. Al, does your data book collection have an RTL book? And I have seen an RTL CookBook-like manual with a bunch of circuits in it. Would have been in 1969-70. I believe I bought it England. Had a green cover, paper boards. I want to say Plessey published it, but the synapses aren't firing on this one. Maybe one of our English members remembers it? Any one have a copy? Billy