I just bought this punched paper tape reader through eBay, just because it looks neat. It was made by Chalco Engineering Corporation, and the accompanying paperwork indicates that it was part of the AN/TPN-19 radar system. It appears to have been overhauled and then packed up for use as a spare. I didn’t find any technical details about it online, but to my amazement I found an original manual for this series of tape readers in another eBay listing! The manual doesn’t cover all of the details of this particular model, but it should be very helpful anyway. When I get around to it, I’ll scan the manual so it can be archived online somewhere.
RADAR equipment and accessories.
For a long time, I’ve had a passing interest in radar antennas. Not so much the antennas themselves, but mostly their azimuth-elevation (az-el) drives. Every now and then, I’d search on eBay for any such az-el drives that looked both interesting and inexpensive, with or without antennas. I finally found one to buy about a month ago, and here’s a little bit about it.