RE: Re: [Repeater-Builder] Samlex Power Supplies

2007-10-22 Thread Mike Mullarkey
lder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Doug Zastrow Sent: Monday, October 22, 2007 6:08 AM To: Repeater-Builder@yahoogroups.com Subject: Re: Re: [Repeater-Builder] Samlex Power Supplies  Ron, Good point. In my case the voltage measurements were made at the load termi

Re: Re: [Repeater-Builder] Samlex Power Supplies

2007-10-22 Thread Doug Zastrow
never tried for long term use. I like it due to its 3 lbs and my FT857 sets nicely on top. 73, ron, n9ee/r >From: "Bob M." <[EMAIL PROTECTED]> >Date: 2007/10/22 Mon AM 04:44:36 CDT >To: Repeater-Builder@yahoogroups.com >Subject: Re: [Repeat

Re: Re: [Repeater-Builder] Samlex Power Supplies

2007-10-22 Thread Ron Wright
ue to its 3 lbs and my FT857 sets nicely on top. 73, ron, n9ee/r >From: "Bob M." <[EMAIL PROTECTED]> >Date: 2007/10/22 Mon AM 04:44:36 CDT >To: Repeater-Builder@yahoogroups.com >Subject: Re: [Repeater-Builder] Samlex Power Supplies > >Thanks

Re: [Repeater-Builder] Samlex Power Supplies

2007-10-22 Thread Bob M.
I just read that manual. Seems each supply is adjusted to 14.2V and should have 1% regulation. They do seem to be very solidly hard-wired in parallel, but some kind of jumper is used between all the modules in an attempt to better share the current. I hope their other supplies have a similar 1% re

Re: [Repeater-Builder] Samlex Power Supplies

2007-10-22 Thread Bob M.
Thanks, that does sound like the unit that my friend is using. I wasn't sure what they did to sum the outputs, and I didn't know it had BB capability. I'd think the voltage drop would be somewhat constant once some load current was drawn. My own repeater needs at least 14.0 Volts because I'm using

Re: [Repeater-Builder] Samlex Power Supplies

2007-10-21 Thread Doug Zastrow
Amplification... The voltage specs are shown on page *19* of the manual as counted by Adobe; page 16 as counted by Samlex. - Original Message - From: Doug Zastrow To: Repeater-Builder@yahoogroups.com Sent: Sunday, October 21, 2007 8:37 PM Subject: Re: [Repeater-Builder

Re: [Repeater-Builder] Samlex Power Supplies

2007-10-21 Thread Doug Zastrow
Bob, >From the description of "five 20 A units in one box" it sounds identical to the Samlex SEC-100BRM as shown on the Samlex web site here: http://tinyurl.com/358l57 The manual for the SEC-100BRM can be found at the Samlex site here: http://tinyurl.com/3a7aa9 Page 20 of the manual shows: T

RE: [Repeater-Builder] Samlex Power Supplies

2007-10-21 Thread Bob M.
Thanks for all the replies. Too bad I never got my original message sent on the group e-mail ! Yahoo does it again. I think the supply is something that was sold for a limited time to offer some kind of redundancy. I don't know if it's entirely capable of 100 amps, but it is only being fed by a st

RE: [Repeater-Builder] Samlex Power Supplies

2007-10-21 Thread Eric Lemmon
Bob, I would expect a 20 ampere DC supply to regulate within 0.5 VDC, no-load to full-load. Since the power supply in question comprises five 20-ampere units in parallel, that should hold true. As it happens, I have been running load tests under controlled conditions, on an assortment of brand-n

RE: [Repeater-Builder] Samlex Power Supplies

2007-10-21 Thread no6b
At 10/21/2007 14:38, you wrote: > > Is anyone running a Samlex 12V supply in a situation > > where they can measure the voltage regulation from > > minimal load to something near half load? > >After a catastrophic failure of a Samlex SEC-1223, I won't use them ever >again. > >I had one that was po

RE: [Repeater-Builder] Samlex Power Supplies

2007-10-21 Thread Jeff DePolo
> Is anyone running a Samlex 12V supply in a situation > where they can measure the voltage regulation from > minimal load to something near half load? After a catastrophic failure of a Samlex SEC-1223, I won't use them ever again. I had one that was powering a stack of 7 SpectraTAC receivers, an