Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ.

---

[ Follow Ups ] [ Post Followup ] Thread: [ Display  All  Email ] [ Tweakers' Asylum ] [ Return to Search Results ]

---

[ Alert Moderator ]

---

RE: safety margin

Posted by JKT (A) on December 3, 2016 at 16:19:31

In Reply to: safety margin posted by Lew on December 3, 2016 at 11:38:10:

I added Hexfreds to a buddies SLI-300b. Thought one 1200V fred would be adequate. Lasted about 6 months before failure. Went to two in series with 4.7M voltage equalizing resistors (not sure if they are absolutely necessary) and it's been good for the last several years. I used DSE-160 (TO247) FREDs and mounted them back-to-back with a mica spacer, the two leads on one side were clipped, bent and soldered together. The resistors were soldered across the leads (parallel connection) and wire leads soldered to the two remaining leads. If you use TO220 devices be sure to use nylon hardware if you decide to mount back-to-back.


"It is better to remain silent and thought a fool, then speak and remove all doubt." A. Lincoln

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

Herbie's Audio Lab

---

[ Top of Page ] [ Contact Us ] [ Support/Wish List ] [ Copyright © 2024, Audio Asylum, all rights reserved ]

---

[ General ] [ Speakers ] [ Tubes ] [ Vinyl ] [ Digital ] [ Hi-Rez ] [ Video Asylum ] [ Cables ] [ Tweaks/DIY ] [ Music ] [ Films ]

---