Many thanks to SWLing Post reader, Jeff (KB7AIL), who shares the following:
Saw the article on the DC meter in a Hammerlund HQ180.
Another mod I have seen is replacing the meter with a digital display.
http://www.electronicspecialtyproducts.com/dd101.html
It integrates with the HQ180 nicely.
They also have digi-displays in cases or use with other receivers/transceivers.
Very cool, Jeff. While I know a digital display might kill the vintage look for some enthusiasts, I have to admire such a useful modification to replace a broken Hammarlund clock/meter.
As Jeff mentions, Electronic Specialty Products has a number of external digital display boxes as well. Check out their full line of products on the ESP website.