The LM-390A relies on specialized software called to design text, serial numbers, and symbols for tubes and tapes.
Right-click the executable file and select . letatwin lm-390a pc driver download
The Letatwin LM-390A was manufactured before Windows 10. You may need to use compatibility mode or a generic driver if no specific Windows 10/11 driver exists. The LM-390A relies on specialized software called to
On the LM-390A device itself: