Hello Everyone.
I have a Harmon Kardon A401 integrated amplifier. I bought it new in 1976. Later I sold it to a friend who returned as junk a few years ago. I replaced all the electrolytics and the output transistors. It works again and sounds alright. My question is if I replace the small signal transistors with up to date versions will it sound better? Or is it a waste of time and money? I've attached a list of those transistors. Most are no longer available so I would have to find substitutes.
Thanks, Kevin
I have a Harmon Kardon A401 integrated amplifier. I bought it new in 1976. Later I sold it to a friend who returned as junk a few years ago. I replaced all the electrolytics and the output transistors. It works again and sounds alright. My question is if I replace the small signal transistors with up to date versions will it sound better? Or is it a waste of time and money? I've attached a list of those transistors. Most are no longer available so I would have to find substitutes.
Thanks, Kevin
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I would never replace semiconductors in an amp unless they are definitely faulty.
Putting in faster transistors can result in oscillation and/or instability.
So I would just leave them be.
Electrolytics are the things that age fastest so replacing those was the right way to go.
Putting in faster transistors can result in oscillation and/or instability.
So I would just leave them be.
Electrolytics are the things that age fastest so replacing those was the right way to go.
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