Vintage Audio Gear: harman/kardon hk330i
Behold, a fine specimen of 1980’s harman/kardon hk330i Ultrawideband Linear Phase Stereo Receiver. When I acquired this unit, it was dirty, the switches and potentiometers were scratchy and none of the dial lamps worked. A little bit of DeOxit in the pots and switches made it work and sound good. Some Holy Cow cleaner made the outside look good. And a retrofit from incandescent mini-lamps to blue LED’s on the dial and red on the pointer gave it a whole new one-of-a-kind look. I also beefed up the heat-sinks on the voltage regulator.
I performed a complete calibration and alignment according to the factory service manual and confidence tested it for several days.
Unit restoration and photos by Kenn Ranous.
I never get bored taking something someone else might throw away and not only restoring it to like-new condition, but making cosmetic and functional improvements to make it better than new.
— Kenn Ranous