I don't know if anyone recalls this, but there was a bad run of rectifiers
on most of their linear supplies in the late-90's. Astron shipped out
replacement rectifiers free of charge. Replacement was easy, one machine
screw and nut to secure the rectifier and four space connectors. From what
I r
ge -
From: wb6dgn
To: Repeater-Builder@yahoogroups.com
Sent: Wednesday, October 21, 2009 11:14 PM
Subject: [Repeater-Builder] Re: Astron Power Supply Alert
<<" Nothing says "we're reputable and here to stay" like a company e-mail
address at
eesh!
>
> 73, Paul AE4KR
>
> - Original Message -
> From: WA Brown
> To: Repeater-Builder@yahoogroups.com
> Sent: Tuesday, October 20, 2009 10:00 PM
> Subject: Re: [Repeater-Builder] Re: Astron Power Supply Alert
>
>
> What is wrong with t
yahoogroups.com
Sent: Tuesday, October 20, 2009 10:00 PM
Subject: Re: [Repeater-Builder] Re: Astron Power Supply Alert
What is wrong with the power supply? Here is the contact info for Astron.
9 Autry, Irvine, CA 92618
949-458-7277 . FAX:949-458-0826
E-MAIL: astroncorporat...@yahoo.com
.
[Repeater-Builder] Re: Astron Power Supply Alert
> Hello Eric,
>
> Would you kindly provide me with the Tech support email address you used
> for Astron.
> Ive been un able to get a good address.
>
> Thank you in advance!
>
> Gary
>
>
>
>
>
>
>
> Yahoo! Groups Links
>
>
>
>
Hello Eric,
Would you kindly provide me with the Tech support email address you used for
Astron.
Ive been un able to get a good address.
Thank you in advance!
Gary
> Joe <[EMAIL PROTECTED]> wrote:
> You may have to be careful of the overvoltage protection device
> if you go too high, I don't remember what it fires at.
Depends on the version of the regulator board... sometimes it
even fires when you don't want it to.
> I turned the voltage up on my VS-5
Email me and I'll reply with a PDF of those pages from the manual. I'm
not good at explaining even simple things. My email address is
tallinson2 att yahooo dott kom. (All spelled correctly).
Tom
--- In Repeater-Builder@yahoogroups.com, "dallasreact112"
<[EMAIL PROTECTED]> wrote:
>
> Has any o
I wasn't sure if those load testers could be turned
down low enough to only give me 25-30 amps. Are they
just carbon sticks?
Bob M.
==
--- skipp025 <[EMAIL PROTECTED]> wrote:
>
> I bought an import made battery load tester off ebay
> for under
> $10. The tester even has a meter indication.
I bought an import made battery load tester off ebay for under
$10. The tester even has a meter indication. I added a small
fan to move air through it and use it as a high current load
where desired. Sometimes I use it as a series resistance.
I also use heating elements out of dead hair drye
--- In Repeater-Builder@yahoogroups.com, "skipp025" <[EMAIL PROTECTED]>
wrote:
>
> Bob,
>
> Were you using the standard generic 3AG glass fuse..? Was it a
fast
> or slow blow..? If you still have the dead fuse... who is the
mfgr?
>
> It takes quite a bit to kill the diodes or a bridge. Re
I would have gladly run the supply loaded to 28 amps
if the resistors could take it. They couldn't. They
were heating the room after several minutes, and took
half an hour to cool off after that. I did the best I
could with the equipment available. I need about 400
watts-worth of load to test these
> "Bob M." <[EMAIL PROTECTED]> wrote:
> Well, I know that the transformer makes heat all by
> itself, but in the repeater cabinet, a fan is blowing
> directly on the back of the supply and I've never had
> anything get hot inside in over 5 years of operation
> (except for the MaxTrac exciter runni
Well, I know that the transformer makes heat all by
itself, but in the repeater cabinet, a fan is blowing
directly on the back of the supply and I've never had
anything get hot inside in over 5 years of operation
(except for the MaxTrac exciter running at 6 watts,
but the fan keeps it cool too).
I
> "Bob M." <[EMAIL PROTECTED]> wrote:
> Someone else mentioned that 25A is the limit for
> continuous use. Yup, I'm not disagreeing. However it
> should be capable of that load for hours at a time.
The heatsink temp will tell you the real story. Astron Linear
Power Supply heatsinks are not "well
At 12:53 PM 2/12/2007, you wrote:
>Someone else mentioned that 25A is the limit for
>continuous use. Yup, I'm not disagreeing. However it
>should be capable of that load for hours at a time.
<---Well, under the best of conditions, probably. But think about it
- you're pushing something pretty
On 2/12/07, Bob M. <[EMAIL PROTECTED]> wrote:
> Someone else mentioned that 25A is the limit for
> continuous use. Yup, I'm not disagreeing. However it
> should be capable of that load for hours at a time.
We run a mixture of Astron supplies and the stock GE supplies, and
almost all of them are r
It was a standard 8A generic 3AG glass fuse. It didn't
blow explosively; it just got soft and opened. When I
put a new fuse in, it blew instantly with a burst of
molten metal coating the insides of the glass.
Fuse quality should not be of concern at this point.
The fuse shouldn't blow with about 4
Bob,
Were you using the standard generic 3AG glass fuse..? Was it a fast
or slow blow..? If you still have the dead fuse... who is the mfgr?
It takes quite a bit to kill the diodes or a bridge. Replacing
the mentioned with a higher capacity type is probably a good idea
but you should also
If you go back far enough.. the mfgr was "Holiday Rambler".
skipp
> "Tedd Doda" <[EMAIL PROTECTED]> wrote:
> I'm trying to remember the brand John, but I've repaired many
> of these "switchers" a year or so ago. The company is out of
> business, therefore the repair (for an RV company).
>
> The
I have read with interest the recent postings on the Astron Power
Supplies and Crowbars.
Question - has this problem been primarily with the "switching" power
supplies or the transformer based power supplies?
We have a Astron RS-20A and a RS-35A that we have been running for a
couple of years w
Most of the crowbar problems I've sourced once
past the Astron regulator board were traced to
weak filter caps of aged units.
The crowbar circuit works well.
skipp
> "Daron J. Wilson" <[EMAIL PROTECTED]> wrote:
> > Let's not lose sight of the fact that the motor circuits that are
> > gener
> Let's not lose sight of the fact that the motor circuits that are
> generating the spikes should be examined for ways to reduce or
eliminate
> same. Moreover, tinkering with the power supply crowbar circuits is
> really treating the symptom rather than the problem.
I have to disagree. Both of
I have never had an RS (linear) Astron power supply go into crowbar
mode, but I can see why a healthy spike could cause that to happen. I
have RS-7, RS-12, RS-20, and RS-35 units that have been working fine for
many years, although all of my new units are SS (switching) supplies.
The RS-35M has a
.com/sonic
> "Mark Holman" <[EMAIL PROTECTED]> wrote:
> Is that board rebuildable ??
>
> MH
> - Original Message -
> From: "Joe D" <[EMAIL PROTECTED]>
> To:
> Sent: Wednesday, September 01, 2004 8:39 AM
> Subject: [Repeater-Bui
Is that board rebuildable ??
MH
- Original Message -
From: "Joe D" <[EMAIL PROTECTED]>
To:
Sent: Wednesday, September 01, 2004 8:39 AM
Subject: [Repeater-Builder] Re: Astron Power Supply Crobars
> Allow me to elaborate.
>
> I have an RM-35M. It has be
I work for a wireless company, sometimes rooftop sites near
elevators and other motor operated devices can cause tremendous voltage
spikes on the power line. Your easiest fix would be to put a UPS
that does line conditioning on the Astron power supply. This should
smooth out any AC glitches th
Hello there,
The LM-723 regulator is often placed in
under engineered circuits. There are on-board
internal amplifier loops, which are
susceptible to RFI and high frequency glitches
- noise. Proper LM-723 pre-regulation is another
common circuit shortfall. The end result is
often seen as er
Allow me to elaborate.
I have an RM-35M. It has been in continuous repeater service for
more than 10 years without a hiccup.
Recently our hosts did some electrical work in the building. They
installed new elevator motors and emergency power. We are now
connected to the emergency power throu
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