Ldk5

[W.B.]

I seem to recall that when that model was first introduced, the U.S. Norelco version was dubbed the PC-100 (yes, it is considered anywhere from part of the LDK-5 family to an ancestor of the LDK-5). In that form, a few stations did use it - notably WCVB-TV in Boston when that station signed on in 1972, after the original license holder for Channel 5 there (the Boston Herald-Traveler, owners of the original WHDH-TV) was kicked off. I have read that in some ways, the PC-100's performance was an improvement over the LDK-5.

Generally, if a Norelco logo is on the cameras, it's early 1970's and designated PC-100. It wasn't until the mid-1970's that Philips' name began showing up on the cameras in the U.S.