Amongst the pile of unwanted vintage electronics growing moldy in my freinds barn was this nice Harman Kardon 430 Twin Powered receiver. He's moving soon and doesn't have the room or time for this stuff so he gave some of it to me in return for repairing a few items for him. This HK 430 was filthy and starting to grow hair, and all of the switches were scratchy and cutting out. It's kind of odd, but every single 6 volt fuse lamp was burned out - talk about a "blackout dial"...I couldn't see a thing when it was on.
Anyway, I spent all day cleaning the controls with contact cleaner and compressed air, thoroughly cleaned out the insides, pulled the knobs and scrubbed them, cleaned and polished the faceplate & cabinet and replaced all of the bulbs. It now looks as good as it sounds - and boy do these HK receivers sound good! I don't know what their secret is but they really have that special something. The HK 430 Twin Powered is a dual power supplied 30 watt per channel receiver and soundwise it's right up there with the Marantz 2230 in my opinion. I like the twin power supplies and the circuit layout - it's easy to work on, and judging from the sound quality it's very well designed.
Here are some shots of it (sorry for the lousy picture quality) - a nudie, front and back, and driving a pair of Henry's "The Smaller Advent" speakers that I just got done refoaming. The Smaller Advents and the HK 430 Twin are a great combination - lots of bottom end and great definition in the highs.
*ADD-ON* - I just wanted to mention that The Smaller Advent speakers pictured are dated Nov. 1974 and that they have pink fiberglass in them. I think '74 is pretty early for the smalls, so pink fiberglass as opposed to foam blocks seems to make sense.
Anyway, I spent all day cleaning the controls with contact cleaner and compressed air, thoroughly cleaned out the insides, pulled the knobs and scrubbed them, cleaned and polished the faceplate & cabinet and replaced all of the bulbs. It now looks as good as it sounds - and boy do these HK receivers sound good! I don't know what their secret is but they really have that special something. The HK 430 Twin Powered is a dual power supplied 30 watt per channel receiver and soundwise it's right up there with the Marantz 2230 in my opinion. I like the twin power supplies and the circuit layout - it's easy to work on, and judging from the sound quality it's very well designed.
Here are some shots of it (sorry for the lousy picture quality) - a nudie, front and back, and driving a pair of Henry's "The Smaller Advent" speakers that I just got done refoaming. The Smaller Advents and the HK 430 Twin are a great combination - lots of bottom end and great definition in the highs.
*ADD-ON* - I just wanted to mention that The Smaller Advent speakers pictured are dated Nov. 1974 and that they have pink fiberglass in them. I think '74 is pretty early for the smalls, so pink fiberglass as opposed to foam blocks seems to make sense.
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