DIY HiFi Forum

Posted by OzMikeH (A) on April 28, 2008 at 00:58:39

In Reply to: RE: "Both channels the hum is the same so I made the same mistake on both" posted by Goneill on April 27, 2008 at 19:58:09

Thanks Goneil, but it's the Ella signature, it has dual mono power supplies on two separate boards. Separate rectifiers, separate capacitors, inductors etc. I didnt realise yours was not dual mono, perhaps I should put the smaller capacitors back in.

The dual mono boards are not grounded by a screw.

I took some pictures of how I fitted the surface mount B+ diodes and the bridge rectifier for the Bias supplies if you would like them for your website.

I'm thinking the diodes I used for the Bias bridge rectifier are not the most appropriate. I'll run through the grounding with the meter just to make sure, it was rather aukward getting the power supply that is near the volume control out.

The buzz is slightly louder in the left side.

The new Bias pots I used are all plastic so they cant be messing it up.

• Sorry...don't know about the Signature (Brian!) - Goneill 20:57:46 04/28/08 (4)
  • Hum almost gone now - OzMikeH 02:54:58 05/03/08 (3)
    • RE: Hum almost gone now - Goneill 04:10:35 05/03/08 (2)
      • RE: Hum almost gone now - OzMikeH 18:27:24 05/03/08 (1)
        • RE: Hum almost gone now - mccormick 12:36:10 05/07/08 (0)

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