HP 1607A Logic Analyzer
The HP 1607A is an early logic analyzer, introduced in the 1976 catalog, in tandem with the HP 1600A. In fact, the HP 1607A can be used as an extension of the HP 1600A to double its input width to 32 bits, or as a standalone analyzer, as we demonstrate in the video, with 16 bit width. Both instruments are shown stacked on the right In the picture below, from the Aug. 1975 HP Journal. To the left is the HP 8016A word generator.
Unlike the HP 1600A, the 1607A does not come with a screen, so you have to provide your own X-Y monitor in the form of an oscilloscope. Or, as we demonstrate in the video, a Tektronics 603 monitor. It also lacks the 1600's ability to compare a logic capture with a pre-recorded matrix, and the 1600's weird map display mode. Otherwise the two instrument have identical capabilities, and the 1607 is much smaller. When hooked together, the data from the HP 1607A appears in the B frame, to the right of the A-frame data from the 1600, extending the display to 16 lines of 32 bits. It replaces the standard B frame, which normally contains the static memory capture to compare against. The compare mode of the 1600 is disabled when the two instruments are connected together.
This video demonstrates the HP 1607A, using a magnificent Tek 603 monitor display. Ours worked pretty much right off the bat, but we still had to peek inside and find Intel's first ever product, a fast 64 bit static memory chip (bits, not bytes or kbytes!) around which this instrument is built.
The service manual for the HP 1607A was not available online, so I acquired one on eBay and scanned it. It is available below. I also uploaded it on the internet archive, with my many other scans, at https://archive.org/details/@curiousmarc . I have included a scan of the 1600A manual, which was available online thanks to the ham radio operator ko4bb, as well the Aug. 1975 HP Journal article.