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ma5100

  1. tutor_turtle

    MA5100 rebuild kit?

    I have a nice, clean, original MA5100 on the bench for a total rebuild. Crackling in right channel after a few hours. Other than that the sound is a little "thin". No noise, hum or buzzing. The controls are smooth and silent. After 55 years the capacitors have surely perished. I have seen one...
  2. Fridge

    Help with MA5100

    I was given a MA5100 amp by a friend to clean up and refurbish. I am a newby at trouble shooting and can use some help. I recapped all electrolytics and some other caps in the audio path. The unit is only putting out about 4 wpc. I tested voltages throughout including all transistors. All...
  3. Alguymcgee

    Retube on a mac ma-5100

    Hey everyone, I was presented with an opportunity to pick up an MA-5100 for relatively cheap, but it's still toward the top of my price range. Just curious, if it needs a retube, what would a reasonable cost be? I k is it varies based on location and bench fees, so I'm just looking for a...
  4. klitzy13

    MA5100 Right Channel Probs...

    I'm hoping one of the Mac experts here can help me with a MA5100 I am working on for a friend of mine. He was using it on Aux and the sound dropped out completely and he couldn't get it back. I brought it home and put it on my bench, after cleaning the unit and reflowing a few solder joints I...
  5. S

    Hooking Up 4 Klipsch Speakers to MA5100?

    I have YADQ (yet another dumb question). Please bear with me. 1. Can I safely hook up a pair of Klipsch Heresy II and a pair of Forte II, (4 speakers in all) to my MA5100 without overloading it or distorting it? There are connections for 4, but want to be safe. 2. Anybody know what the screws...
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