Mounting diodes

Posted by Ric Schultz (M) on March 15, 2016 at 00:03:58

In Reply to: RE: IXYS DSEI HFA series freds or?? posted by sayntjack on March 14, 2016 at 23:24:04:

You cannot mount large two lead diodes like you would a tiny one that sits on a board. If your part is sitting in the air and resonating on its two leads....you will hear this. Very bad. You must damp all diodes, large transistors, regulators, heatsinks, etc. or you get bad sound. Use EAR SD40AL damping material (available from Percy Audio) along the top or sides of all diodes or from the top of the diode to another part. Then use a little Amazing Goop around the part of the damping material where it is touching the part as the glue on the EAR material is not very strong. Amazing difference for the better when your parts are not resonating. Check out my oppo 105 mod page for pics of damped diodes and parts. Don't put damping material directly on the face of anything electrical (including diodes). Damping material is not a good dielectric....damp along the edges only.

This post is made possible by the generous support of people like you and our sponsors:

Follow Ups Full Thread

Topic - IXYS DSEI HFA series freds or?? - Tweaker456 11:29:50 03/14/16 (19)

RE: IXYS DSEI HFA series freds or?? - sayntjack 23:24:04 03/14/16 (4)

Mounting diodes - Ric Schultz 00:03:58 03/15/16 (3)

RE: Mounting diodes - Tweaker456 12:24:09 03/15/16 (1)

RE: Mounting diodes - Lew 14:51:53 03/15/16 (0)

RE: Mounting diodes - Tweaker456 11:42:20 03/15/16 (0)

RE: IXYS DSEI HFA series freds or?? - Ric Schultz 20:34:08 03/14/16 (1)

RE: IXYS DSEI HFA series freds or?? - Tweaker456 11:57:24 03/15/16 (0)

I thought you'd made your choice, ... - Lew 14:41:28 03/14/16 (8)

RE: I thought you'd made your choice, ... - Tweaker456 11:51:44 03/15/16 (7)

You need to try some different types of diodes that you have... - Cougar 20:00:51 03/15/16 (6)

Reporting back on the IXYS diodes in the dac PS - Tweaker456 20:45:26 04/01/16 (0)

RE: You need to try some different types of diodes that you have... - Tweaker456 01:14:36 03/16/16 (4)

You can normally see noise with a..... - Cougar 07:35:34 03/16/16 (3)

RE: You can normally see noise with a..... - Tweaker456 10:55:45 03/16/16 (2)

RE: You can normally see noise with a..... - Lew 18:59:39 03/16/16 (0)

You should see it... - Cougar 13:18:17 03/16/16 (0)

RE: IXYS DSEI HFA series freds or?? - beautox 13:41:54 03/14/16 (2)

Just what this forum needs another diode thread - Tweaker456 11:29:41 03/15/16 (0)

RE: IXYS DSEI HFA series freds or?? - Ric Schultz 20:39:23 03/14/16 (0)

Follow Ups

Mounting diodes - Ric Schultz 00:03:58 03/15/16 (3)

RE: Mounting diodes - Tweaker456 12:24:09 03/15/16 (1)

RE: Mounting diodes - Lew 14:51:53 03/15/16 (0)

RE: Mounting diodes - Tweaker456 11:42:20 03/15/16 (0)

Mounting diodes

Post a Message!