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.

Note the blue dial and red pointer.

Note the blue dial and red pointer.

hk330i-3 hk330i-4

Note the upgraded heat sinks.

Note the upgraded heat sinks.

hk330i-6

 

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

 

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