National NC-173 Tube Ham Shortwave Receiver Crystal Calibrator D-Lab Gadget скачать в хорошем качестве

National NC-173 Tube Ham Shortwave Receiver Crystal Calibrator D-Lab Gadget

A much needed accessory for the National NC-173, 183 receiver and many others. I have always realized this need, but time always got in the way of producing the solution. Well, here it is, the XCU-1M, one megahertz crystal calibrator. Similar in design to the famous XCU-300 used in the NC-300 & 303. This module simply plugs into the rear octal socket, a few wire changes and your off and running. You will install a new power switch on the front panel where the phono input jack was. No drilling required. I found a vintage switch that goes right in the existing hole. This is a great addition to these old analog receivers. I also have a model the mounts vertical into the National NC-183D. Will post the video link. D-Lab is keeping these vintage receivers alive!