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DIY Workshop » σ22 and σ11: Discrete, dual-rail & single-rail regulated PSUs (part 2) | johnwmclean Member Joined: Dec. 8, 2008 |  Message [#100] posted on: 03-01-2009 06:01 AM CST (US).   |  |  Like this? I know I’m painful. Thanks for super quick response. see attachment [Edited by johnwmclean on 03-01-2009 at 06:03 AM.] Attachment: C4712.png |
Mister X  HeadWize Fanatic Joined: Jul. 23, 2003 | Message [#101] posted on: 03-01-2009 06:11 AM CST (US). | | Like this. Attachment: C4713.png |
| Mister X HeadWize Fanatic Joined: Jul. 23, 2003 | Message [#102] posted on: 03-01-2009 06:54 AM CST (US). | | Or maybe even like this.  Attachment: C4714.png |
| johnwmclean Member Joined: Dec. 8, 2008 | Message [#103] posted on: 03-15-2009 06:00 AM CST (US). | | I got a spark (over my DDM probes) when measuring the DC voltage from the output pads on one of my σ22’s. I must have brushed the two probes of my DDM together somehow. The .5A fuse did not blow, and the σ22 still measures fine, luckily. Is there anything else I should check before connecting a load to ensure it’s ok now. [Edited by johnwmclean on 03-15-2009 at 06:18 AM.] |
amb Headphone Council Joined: Apr. 1, 2004 | Message [#104] posted on: 03-15-2009 12:10 PM CST (US). | | If everything still measures fine then it's most likely ok. Be careful with the DMM probes... probe errors cause more grief than you could imagine. Once you connect a load, observe the temperatures of the σ22 heatsinks, they should all be fairly similar. |
| a1m80t Member Joined: Feb. 26, 2009 | Message [#105] posted on: 03-17-2009 01:38 PM CST (US). | | So i'm thinking building an σ11 at 30v for my m3. I'm currently having problems finding a suitable, insulated dc power jack and connector. 1. The recommended dc connector/jack for the m3 is rated at 24volts (9163-4303), can that really be used if i'm setting the σ11 at 30v? 2. can you guys recommend a different one if that one does not work? with my limited knowledge on this field, i couldn't find a suitable alterantive on mouser. |
| amb Headphone Council Joined: Apr. 1, 2004 | Message [#106] posted on: 03-17-2009 01:51 PM CST (US). | | While the default barrel jack/plugs should be fine at 30V, I do recommend a locking style connector to minimize the chance of disconnection/reconnection while the power is on. That would subject the σ11 to risk of damage. Depending on how much you want to spend, I am now using the Amphenol Eco|Mate C-16M series connectors almost exclusively for these purposes these days. |
| j4cbo Member Joined: Sep. 3, 2006 | Message [#107] posted on: 03-19-2009 01:13 PM CST (US). | | Lots of σ22s going together for some amp builds... |
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