New Day - New Finds!

One of my sources got a new load today. I went by and checked it out and found a HP 1000 F Series computer. It's been pretty badly beaten up but it has a full load of cards so I'll probably use it for parts. Also found a double sized battery backup/power fail battery for a HP 1000. Also found a weird set of black boxs that appear to be made for aircraft use. They're all marked Ampex DCRSi. One is marked Transport and has a large tape drive built in the top of it. The others are marked Recorder, Reproduce and then a Power Supply. Does anyone know anything about these? They're very unusual looking. Also found a pile of NIB Intel AboveBoards for the PC AT, a bunch of various cards with some interesting ICs that I'll pull and add to the parts bins, a Tektronix 4041 computer and two Tektronix 4041DDU Disk Drive Units for the 4041. But one of the nicest finds was a optical paper tape reader that can be set to read 5, 6 or 8 level PT. Changing the 5, 6, 8 switch raises and lowers different sets of guide pins in the reader mechanism and moves the PT left or right so that it lines up with the drive sprocket. The front says Data Precision DP203 and the back says Membrain AH30218. There have been some Membrain computer(?) cards showing up out there so I'm guessing that this came off of some kind of Membrain computer but was actually made by DP. Does anyone have any info on it? Joe