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Post by mulmany on Mar 3, 2014 20:40:03 GMT -6
Since my 48v supply acted up do to a short at the indicator LED, I took a closer look at the psu itself. Its one of the Original BAE's made by International Power. My 16v rails have some ripple so I was thinking about changing out all the electrolic caps. Also looking to add some grunt until I build one of Jeffs 51x PSU's.
Its kinda funny that BAE did not even try to hide the fact that International was building their supplies. All this is, is the 15v/1.5A Power supply and the 48v power supply from International bolted to the same chassis and wired to the 5 pin XLR.
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Post by svart on Mar 3, 2014 20:59:05 GMT -6
Why should they hide it? Most power supplies are made by a few companies who just OEM or rebrand them for others anyway. It's rare that a company would spend the extra money to develop their own supplies, and then pay to go through FCC and CE certification, etc, when they can just buy something and put it in a box..
As for the ripple, go ahead and change the caps. it can't hurt. My favs are nichicon HE for power supplies.
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Post by mulmany on Mar 3, 2014 21:33:13 GMT -6
Why should they hide it? Most power supplies are made by a few companies who just OEM or rebrand them for others anyway. It's rare that a company would spend the extra money to develop their own supplies, and then pay to go through FCC and CE certification, etc, when they can just buy something and put it in a box.. As for the ripple, go ahead and change the caps. it can't hurt. My favs are nichicon HE for power supplies. I just think its odd... most of the gear I open up has traces of the original manufacturers numbers but usually its very cryptic and you have to know what to look for. This PSU has the logo and all the part numbers. I guess I was more surprised, cause people at the purple site always raved about how great the PSU's were. Have any other favorites for PSUs, the HE's don't have the values I need atleast not from mouser. Its got 2x 35v 4700uf 2x 35v 220uf 2x 35v 33uf 1x 65v 470uf 2x 100v 330uf 1x 100v 22uf 1x 63v 100uf Thanks
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Post by svart on Mar 4, 2014 7:55:39 GMT -6
Nichicon PW series works pretty well too.
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Post by jimwilliams on Mar 19, 2014 11:40:05 GMT -6
I rebuild my bench and console Power One supplies with huge caps and film bypasses. I also add a time contraint mod to prevent power up latching. Add a 47 uf cap and a 220~270 ohm resistor from pin's 2 and 3 on the 739 regulator chips. Place the + end towards pin 2. That fixes a lot of power up issues.
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Post by mulmany on Mar 19, 2014 13:43:22 GMT -6
I rebuild my bench and console Power One supplies with huge caps and film bypasses. I also add a time contraint mod to prevent power up latching. Add a 47 uf cap and a 220~270 ohm resistor from pin's 2 and 3 on the 739 regulator chips. Place the + end towards pin 2. That fixes a lot of power up issues. Jim, parallel or series on the cap and resistor? I assume series. I recapped both supplies and fixed the LED indicators that had apparently been shorting out for some time. It seems to have fixed some of the issues that I was having. I am thinking about just putting the 6 amp Power One supply in a case with a new 48v supply and calling it a day. that would let me power 4 racks at VPR spec. for around $300 with case and additional parts.
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Post by frans on Mar 20, 2014 2:50:19 GMT -6
If I'm not mistaken BAE got Brad Avenson to do a better PSU because they weren't happy with the original one.
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Post by Johnkenn on Mar 20, 2014 9:27:37 GMT -6
Yeah - I've had problems with my Brent Averill PS...Slots occasionally not working, headroom/underpowering issues, etc. BAE offered to sell me another PS for $200...
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Post by tonecraft on Mar 27, 2014 16:23:26 GMT -6
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