1. John Czerwinski

    Correct replacement electrolytic capacitor.

    Confused on choosing the correct replacement electrolytic capacitor. For example, on an Atari AR I board (built in the early 1980s), the parts list calls for two (2) 3300 uf Aluminum Electrolytic Fixed Axial-Lead 35V. The original capacitor PHYSICAL size are relatively large. When you go on...
  2. bignobody

    First time using a Voltage Regulator sanity check, plus decoupling capacitors questions

    Hi! I've only soldered a few circuits before. Tomorrow I am planning on building a mono audio amplifier with a LM386 IC. I've a thread about it here (including a link to the schematic I am working from) https://forum.allaboutcircuits.com/threads/166673 The schematic uses a 9V battery, but I'd...
  3. Nik.T11

    Self-capacitance and material properties.

    Hello, While looking at some basic capacitor information I ran into a concept I hadn't really thought about before, self-capacitance. While perusing the article section on wiki I began to wonder if the material type would have an effect on the self-capacitance of a material. Essentially, my...
  4. Keith Robinson

    Alternative to centrifugal switch

    I’m renovating a very solid very old grindstone. I have broken the centrifugal switch that switches from starting winding to running. Before I attempt micro surgery could I bypass this method and use a capacitor instead? If so how to wire it ? it needs greater brains than I possess to figure...
  5. J

    Single phase induction motor trips breaker

    Hi, So I've got this rotary floor sander I've got to fix. When I opened it I noticed someone had fixed it before and 1 of the capacitors had swollen. I've been told it had been working for a long time before the capacitor broke. I assumed the silver one was the run capacitor and the blue broken...
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