tag:blogger.com,1999:blog-56931000506024958032024-03-13T08:31:14.885-07:00Sunset ObservatoryAnything and Everything in the Cosmo'sSunset Observatoryhttp://www.blogger.com/profile/00713037089423089842noreply@blogger.comBlogger2125tag:blogger.com,1999:blog-5693100050602495803.post-44479429389974280242013-05-03T20:41:00.001-07:002013-05-26T16:27:30.457-07:00Regel System PulseGuide Illuminator Hack<span id="goog_190404196"></span><a href="http://www.blogger.com/"></a><span id="goog_190404197"></span><span style="font-family: inherit;">I found that my new Regel System PulseGuide illuminator is a </span>superb<span style="font-family: inherit;"> little device (photo #1), however for my viewing purposes I found it to be a little on the dim side. Now comes the hack. I was planning on replacing the TS555 CMOS clip, but to use a regular LM555, the minimum input voltage was 4.5 Vdc. The supplied battery is a CR 1/3 N at 3 Vdc. If you short out the 51 ohm resistor next to the chip, the LED will become brighter, but the flash control barely works (photo #2). The 555 CMOS chip is good up to 16Vdc input. By replacing the original battery with four separate batteries, 3 being LR1130 (35mAh 1.5 Vdc), & 1 BR1216 (25mAh 3Vdc) The two main reasons for the four batteries is because by only placing 3- LR1130's in the battery compartment they did not fill the space and the positive & negative terminals would have to be slightly pried open to fill the void. By adding the forth battery (BR1216) not only filled this small void, to which that battery is half the thickness of the others, it also added an additional 3Vdc, still well within the operating range of the TS555. By increasing the voltage output from 2.9 Vdc to approximately 7.5 Vdc, now with a significant increase in voltage, and placing a jumper across the current limiting 51 ohm resistor, the tuning circuit of the flash still works very well (photo #3). Now the potentiometer (on/off switch) still has full control and even turned down to the lowest setting, there is still plenty of brightness. After this modification and the increase in voltage I seen no reason to go to the extent of replacing the original TS555 chip.</span><br />
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Hello Mr. Pyles,<div>
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Thanks for the kind words! Typically if the pulsguide doesn't light the reticle, its because the reticle glass plate is not aligned with the illumination slit at the bottom of the 8mm hole in the side. Sometimes this can be solved by making sure LED goes all the way in a bit further (unplug led from socket, rebend the leads so it pokes out a bit further).</div>
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But your solution is quite clever! I use CMOS because lithium is only 3 volts, and TTL 555 will not work down to 3 volts.</div>
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best regards</div>
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Mr. Palmer, Thank you very much for reading my e-mail. I didn't mean any disrespect by re-working your PulseGuide system. You do have a very superb product. You are right about the glass plate in the reticule being out of alignment. But you know how the old saying goes, "Necessity is the mother of invention". As I previously stated, you people have some wonderful products to which I will be purchasing some of them very soon. If in the future if you have the need for some in the field trial tests, please feel free to give me a shout, I and Sunset Observatory would thoroughly enjoy be part of your R&D program. Thanks again. Don Pyles. Sunset Observatory</div>
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<span class="hb" style="color: #777777; vertical-align: top;">to <span class="g2" email="pyles7116@gmail.com" name="me" style="vertical-align: top;">me</span></span></div>
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Hi Don,<div>
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No offense taken, always accept suggestions (working one now with another customer on nSTEP who offered a good design change). I've done a motor kit for your vixen scope (for a previous customer), so that's pretty easy. Photo shows the stepper version.</div>
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best regards,</div>
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For more information about this cool little device in it's original state, please visit the following links,</div>
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.<a href="http://www.rigelsys.com/" style="background-color: white; color: #1155cc; font-family: arial, sans-serif; font-size: 13px;" target="_blank">http://www.rigelsys.com/</a></div>
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<a href="http://www.company7.com/rigel/products/pulsguide.html" target="_blank">http://www.company7.com/rigel/products/pulsguide.html</a></div>
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<a href="http://www.optcorp.com/ri-pulsguide-pulseguide-illuminator.html" target="_blank">http://www.optcorp.com/ri-pulsguide-pulseguide-illuminator.html</a>Sunset Observatoryhttp://www.blogger.com/profile/00713037089423089842noreply@blogger.com0tag:blogger.com,1999:blog-5693100050602495803.post-87118845071153695522013-04-27T18:37:00.000-07:002013-04-27T18:37:21.222-07:00<div class="widget widget-text" id="widget-db3ad5e1-9096-c7d7-7cdd-b2074d029b7e">
<div class="widget-content">
<div lang="en">
<span style="font-size: medium;">Basically
I have been interested in the night sky for as long as I can remember.
When I was very young I remember being in my grandparents front yard
with my father and grandfather as they stood looking into the night sky.
Now mind you I was 2 years and 8 months old. I am talking about
December of 1957. Before you knew it, my mother, grandmother, aunt and a
few neighbors were all standing around doing the same thing, staring
into the vast blackness of cold winter night sky. When all of a sudden
my father said, "there it is". Everyone starting pointing upward as my
father was holding me at the time, as he too was pointing in the
direction that he wanted me to look. I remember him asking if I could
see the star that was moving, (what ever a star was). I do remember
seeing something of a point of light moving, being as there was
absolutely nothing else in motion. They watched it for several minutes
as it disappeared off to the east. I really didn't know what all the
commotion was all about, a 2 year old does not have much of an attention
span. However I do remember that it was very cold out and wanted to go
back inside and be warm again. What everyone was looking at was the
first satellite ever lunched into space, it was Sputnik 1. Even at the
time it did not mean anything to me until years later I learned that
Sputnik 1 was the first satellite ever lunched into space. Then much to
my surprise I learned that it had only spent about three months in orbit
before it burnt up upon reentry. It was only about the size of a
basketball, but could plainly be seen.</span></div>
<div lang="en">
<span style="font-size: medium;">Years later laying on my
back looking into the night sky with my fathers binoculars taking in
everything I could possibly see. Stars seemed to be pretty cool until I
seen something else up there that was moving and I knew it was not a
star nor an airplane. I had just viewed my first satellite that I had
found on my own. After that, weather permitting, it had become a nightly
show for me. I had become so transfixed with looking into the night sky
that my eye sockets hurt from laying there resting the weight of those
10 x 50's on my face trying to hold them as still as possible. I wanted
to see everything I could and not miss a thing. My father then had
decided to purchase a telescope mainly for his own use, but you know how
that turned out. I remember that scope very well. As a matter of fact, I
have that vary scope to this day. It was a Tasco refractor. It has a
60mm diameter with a 700mm focal length. To a young boy this scope
seemed so big and long as it was perched on top of the tripod. Needless
to say as time went on and looking into every Sky & Telescope
magazine I could possible find or lay my hands on, I started to see and
read about telescopes that were a lot bigger in apeture. One afternoon
on my way home from high school (Macomber), myself and a few friends
were waiting for the bus downtown on Huron St. in front of Kramers smoke
shop. In Kramers, they had a very nice selection of books. Sports,
hunting, outdoor magazine, then what catches my eye, but that months
issue of Sky & Telescope. Right beside that was another magazine
called "Astronomy". I fell deeper in love with the hobby and would
rather read those than any old book at school. </span></div>
<div lang="en">
<span style="font-size: medium;">It was not too very long
after that when I decided to purchase my first Schmidt Cassegrain scope.
It was a tabletop model and only 4" in diameter. I named it Phobos,
after the moon around Mars. Small moon, small scope. After that I would,
and still do name my scopes after moons of our solar system. I started
Sunset Observatory in 1984. I knew that at the time and only a 4" scope
things most definitely had to change. As time went on, I was now working
in the United Building Trades as a Sheet Metal Worker. I seen my first
large apeture Schmidt Cassegrain telescope at a local camera shop in
1989. It seemed like a monster. It was an 8" Meade on a forked arm
German equatorial mount. Had to have one. I placed an order with City
Camera in Dearborn michigan for a scope. But what I had ordered was an
even bigger 2120 LX 6- 10". Being as I was young and not a lot of money,
I had to finance this loan, so a fitting name was going to be IO, (moon
of Jupiter), hence I owed. And the love and purchases continue to this
day. </span></div>
<div lang="en">
<span style="font-size: medium;">I had pretty much every
monthly issue of Sky & Telescope to date until, that horrible night
in 1994 when I had a garage fire. Not only did I loose every one of
those issues to the fire, I also lost my 10" Schmidt Cassegrain ( IO),
along with my very first table top Schmidt Cassegrain ( Phobos). I was
totally heartbroken. Thank God for replacement cost coverage on my
homeowners insurance. </span></div>
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Sunset Observatoryhttp://www.blogger.com/profile/00713037089423089842noreply@blogger.com3