Hmmm. It is interesting how the level of energy I put into a project bears no relation to the level of interest shown in the resulting post. For me, the most intense, enjoyable and interesting project has been the restoration and comparison of the early Tek 535 and HP 150A. Yet the post that attracts most interest is that on the Triumph Wobbulator, perhaps there is something in the name? And I did enjoy the Triumph restoration enormously but it lacked the depth of the 535/150A project. I am pleased to note the level of interest in the AN/USM page, the USM-32 project was quite novel. I also note that very few people visit the page where the equipment is listed with the post links and similarly, few people click on the pictures to display them full-size. I wonder if the information I provide is helpful or merely of passing interest? I suspect that in most cases, it is the latter. Still, I do this because I want to however, I also want to provide something of value. I am soon to add a 511A to the collection, taking me much closer to the beginning of Tek. I wonder how that will be received?