Another mod I have seen is replacing the meter with a digital display.
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.