Date   

AP900 Dec backlash

John Winfield
 

Hi,

I've recently bought a used AP900 and just ran the backlash tests in
Ray's Pulseguide app.

I found a load of Dec backlash - so much that the tests didn't reverse
direction at all.
I needed a backlash setting of 87 in the driver to correct for the
backlash.

Today I went to follow the instructions on the AP website to adjust
the Dec worm adjustment (using the advice of finger pressure rather
than a hammer!).

The first thing I noticed was that the grub screw locking the hex bolt
in place was still present, so presumably the adjustment had never
been done before since the instructions say to remove and discard this
screw.
However, although I could loosen the grub screw, I couldn't remove it
completely - it unscrewed to the point of contacting the Dec motor
housing but I couldn't get it out completely. Is there a trick to
removing it?

Secondly, once I had loosened the bolt and retightened with finger
pressure pushing on the motor housing, the instructions said to remove
the shaft cover and ensure the shaft could be rotated by hand without
binding. However, I couldn't remove the shaft cover.
Does it screw on, or is it a push fit? Any tips for removing it
without marring?

Thanks,

John


Re: Brightest Comet in the Sky -- Don't Miss It!

Geoff Carstairs <geoffc@...>
 

Dennis that is brilliant. It really gives a sense of how fast that comet
was moving.
Well done.

Geoff

Dennis Persyk wrote:


C/2007 E2 (Lovejoy) is nearing its peak on light curve -- see
http://www.aerith.net/comet/catalog/2007E2/2007E2.html
<http://www.aerith.net/comet/catalog/2007E2/2007E2.html>

This is presently the brightest comet in the sky (save for a few
lucky souls near the equator who might still be able to view
2P/Encke). Better grab a view or an image now, before it fades into
oblivion.

It is racing though Aquila at 8.8 arc seconds per minute at
magnitude ~ 7.6. I was limited to 30 second exposures when I imaged
it to avoid blur.

I "think" I saw (using averted vision and averted imagination) the
comet in my 4-inch refractor piggybacked on the 6-inch E-160 f/3.3
astrograph. I synthesized a simulated eyepiece view for my web page
linked below.

I was baffled for quite a while looking for the "missing star", V606
Aquilae, that was depicted prominently in my SkyMap Pro screen shot
as being very bright but was missing in my image -- even though all
the other stars were right where they should be. How could I not
image a bright star??? The mystery (for those that haven't figured
it out yet) is solved on the web page.

Let me know what you think of the movie. It really was hard for me
to get the hour's worth of frames to look about the same. The comet
was rising in the sky (and thus getting brighter as the atmospheric
extinction was decreasing); at the same time, the sun was rising, so
the sky glow was increasing. Balancing the two effects to achieve
consistent histograms drove me nuts! I've probably invested ten
hours in image processing and composing the web page.

Images, associated data, eyepiece view, imaging notes and *movie*
all at
http://home.att.net/~dpersyk/new.htm
<http://home.att.net/%7Edpersyk/new.htm>

Please take a look and give me some feedback. This was quite a
processing challenge for me. Thank you for visiting my site.

Clear skies,

Dennis Persyk
Igloo Observatory Home Page http://dpersyk.home.att.net
<http://dpersyk.home.att.net>
Hampshire, IL


Brightest Comet in the Sky – Don’t Miss It!

Dennis Persyk <dpersyk@...>
 

C/2007 E2 (Lovejoy) is nearing its peak on light curve – see
http://www.aerith.net/comet/catalog/2007E2/2007E2.html

This is presently the brightest comet in the sky (save for a few
lucky souls near the equator who might still be able to view
2P/Encke). Better grab a view or an image now, before it fades into
oblivion.

It is racing though Aquila at 8.8 arc seconds per minute at
magnitude ~ 7.6. I was limited to 30 second exposures when I imaged
it to avoid blur.

I "think" I saw (using averted vision and averted imagination) the
comet in my 4-inch refractor piggybacked on the 6-inch E-160 f/3.3
astrograph. I synthesized a simulated eyepiece view for my web page
linked below.

I was baffled for quite a while looking for the "missing star", V606
Aquilae, that was depicted prominently in my SkyMap Pro screen shot
as being very bright but was missing in my image – even though all
the other stars were right where they should be. How could I not
image a bright star??? The mystery (for those that haven't figured
it out yet) is solved on the web page.

Let me know what you think of the movie. It really was hard for me
to get the hour's worth of frames to look about the same. The comet
was rising in the sky (and thus getting brighter as the atmospheric
extinction was decreasing); at the same time, the sun was rising, so
the sky glow was increasing. Balancing the two effects to achieve
consistent histograms drove me nuts! I've probably invested ten
hours in image processing and composing the web page.

Images, associated data, eyepiece view, imaging notes and *movie*
all at
http://home.att.net/~dpersyk/new.htm

Please take a look and give me some feedback. This was quite a
processing challenge for me. Thank you for visiting my site.

Clear skies,

Dennis Persyk
Igloo Observatory Home Page http://dpersyk.home.att.net
Hampshire, IL


Balance Procedure

spcrichey <drichey@...>
 

What's the procedure for rebalancing. If I have very good polar alignment and a good
pointing accuracy, but need to loosen the clutces and reblance the load due to adding
equipment, how do I maintain my pointing model.


Operating Temperature

spcrichey <drichey@...>
 

My AP900 is in a fiberglass observatory and in the summer it can get quite hot, well over
100ºF. Is this a problem for the equipment?


Re: Advice please: Standard verus Rotating Pier Adapter

observe_m13
 

I call it simply the RA axis or more usually RA section. The altitude
plates and azimuth adjusters are part of this section. The other piece
is the Dec section or Dec axis. Pretty basic.

Rick.

--- In ap-gto@..., "Joseph Zeglinski" <J.Zeglinski@...> wrote:

Yes, but I think you were right.

A lot of discussion about AP mounts eventually gets into
referring to the
"base section". Quite often I see discussions on Astro Mart, and
other places,
and they refer to the fork. The new fork versus the old fork, the mount
assembly instructions in the manual, the sales and parts catalog -
the term
comes up quite often. I think it was descriptive, but perhaps an
unfortunate
duplicate of something else.

I just wish that AP had selected some other term to name that
part, a long
time ago. Now I dare not use the term "fork", lest perhaps someone
new to the
product, gets momentarily confused with "fork mounts for
telescopes", instead
of "fork mounts for telescope mount axles".

Indeed, it would seem that long standing members of the group
and owners
of an AP mount might possibly not be aware of the "fork" term used
this way.
At least this discussion leaves behind some hard copy in the
archives, for
newcomers.

Just wanted to set the record straight.

Joe


----- Original Message -----
From: <kgkirkley@...>
To: <ap-gto@...>
Sent: Wednesday, April 18, 2007 12:09 PM
Subject: Re: [ap-gto] Re: Advice please: Standard verus Rotating
Pier Adapter



Joe:
I didn't mean to have things get complicated.

I think "Polar Axis Assembly" would suffice.

Kent Kirkley


**************************************
See what's free at
http://www.aol.com.


[Non-text portions of this message have been removed]



To UNSUBSCRIBE, or for general information on the ap-gto list
see http://groups.yahoo.com/group/ap-gto
Yahoo! Groups Links


Re: Advice please: Standard verus Rotating Pier Adapter

Joe Zeglinski
 

Yes, but I think you were right.

A lot of discussion about AP mounts eventually gets into referring to the
"base section". Quite often I see discussions on Astro Mart, and other places,
and they refer to the fork. The new fork versus the old fork, the mount
assembly instructions in the manual, the sales and parts catalog - the term
comes up quite often. I think it was descriptive, but perhaps an unfortunate
duplicate of something else.

I just wish that AP had selected some other term to name that part, a long
time ago. Now I dare not use the term "fork", lest perhaps someone new to the
product, gets momentarily confused with "fork mounts for telescopes", instead
of "fork mounts for telescope mount axles".

Indeed, it would seem that long standing members of the group and owners
of an AP mount might possibly not be aware of the "fork" term used this way.
At least this discussion leaves behind some hard copy in the archives, for
newcomers.

Just wanted to set the record straight.

Joe

----- Original Message -----
From: <kgkirkley@...>
To: <ap-gto@...>
Sent: Wednesday, April 18, 2007 12:09 PM
Subject: Re: [ap-gto] Re: Advice please: Standard verus Rotating Pier Adapter



Joe:
I didn't mean to have things get complicated.

I think "Polar Axis Assembly" would suffice.

Kent Kirkley


**************************************
See what's free at
http://www.aol.com.






To UNSUBSCRIBE, or for general information on the ap-gto list
see http://groups.yahoo.com/group/ap-gto
Yahoo! Groups Links


Re: Advice please: Standard verus Rotating Pier Adapter

Joe Zeglinski
 

Hi Tom,

Yes, I forgot about that error.

I was probably thinking about the TOTAL weight of the mount, if I were to
lift it fully RA + DEC assembled (minus weights and bar). That is almost the
same as my G11 mount (minus it's weights and bar).

Though that seems strange - the G11 looks so puny compared to the AP900 -
the AP900 is more massive looking, more load bearing surface, yet a lot of the
excess aluminum has been milled away.

The choice is between doing "one heavy lift" (as for the G11) from house
to yard pier, or make two trips and save your back. That, along with the
better load surface, and of course, extra 10 lbs of scope load capacity,
swayed me to upgrade. Naturally, there were many other AP performance and
quality reasons.

Joe

----- Original Message -----
From: "r9825" <w11806@...>
To: <ap-gto@...>
Sent: Wednesday, April 18, 2007 11:49 AM
Subject: [ap-gto] Re: Advice please: Standard verus Rotating Pier Adapter


Not sure where you are getting 35 lbs from. The RA aixs which includes
what you call the "fork" is listed as 26.5 lbs. The 900 mount is very
easy to carry and setup.

Tom





To UNSUBSCRIBE, or for general information on the ap-gto list
see http://groups.yahoo.com/group/ap-gto
Yahoo! Groups Links




Re: Advice please: Standard verus Rotating Pier Adapter

Auchter Tom-W11806
 

Not sure where you are getting 35 lbs from. The RA aixs which includes
what you call the "fork" is listed as 26.5 lbs. The 900 mount is very
easy to carry and setup.

Tom


Re: Advice please: Standard verus Rotating Pier Adapter

Joe Zeglinski
 

Hi Kent,

Yes, I dislike using the term "fork", for this AP mount's part, but that
is what they call the "pair of vertical plates and bottom plate" that support
the Polar axle. I guess it really looks like and serves as a "fork for the
assembly", but not a "fork mount for a telescope". That really confuses
discussions about mounts, since we use the short form "fork" to imply "mount".

What do you think would be a better term to describe the base plate with
the two vertical side plates? Perhaps AP might accept using a different term
to describe their "base fork", from now on.

Alternatively, we could simply change the part's terminology to a "yoke" -
or will that now imply a form of "horse shoe" telescope mount?

How about replacing the AP "base fork" terminology with the word "BENDIX"
(if that is the correct spelling)?
If I recall correctly, there is a "fork-like" sliding part on the shaft of
every automobile's starter motor, that momentarily pushes the small starter
pinion into the main gear of the car's transmission, when you crank the
engine - so maybe we can suggest that AP change their confusing term, to an AP
mount's "Bendix".
Any auto mechanics out there that can correct me on this?

Other suggestions?

Joe

----- Original Message -----
From: <kgkirkley@...>
To: <ap-gto@...>
Sent: Tuesday, April 17, 2007 11:31 PM
Subject: Re: [ap-gto] Re: Advice please: Standard verus Rotating Pier Adapter



In a message dated 4/17/07 8:48:38 PM, J.Zeglinski@... writes:


The AP900 RA with fork is 35 lbs.
'with fork' ??? What fork?

German equatorial mounts don't have forks, unless you are referring to the
mount's side plates.

Kent Kirkley



**************************************
See what's free at http://www.aol.com.






To UNSUBSCRIBE, or for general information on the ap-gto list
see http://groups.yahoo.com/group/ap-gto
Yahoo! Groups Links




Re: Advice please: Standard verus Rotating Pier Adapter

Kent Kirkley
 

In a message dated 4/18/07 10:29:14 AM, J.Zeglinski@... writes:


Hi Kent,

    Yes, I dislike using the term "fork", for this AP mount's part, but that
is what they call the "pair of vertical plates and bottom plate" that
support
the Polar axle. I guess it really looks like and serves as a "fork for the
assembly", but not a "fork mount for a telescope". That really confuses
discussions about mounts, since we use the short form "fork" to imply
"mount".

    What do you think would be a better term to describe the base plate with
the two vertical side plates? Perhaps AP might accept using a different term
to describe their "base fork", from now on.

    Alternatively, we could simply change the part's terminology to a "yoke"
-
or will that now imply a form of "horse shoe" telescope mount?

    How about replacing the AP "base fork" terminology with the word
"BENDIX"
(if that is the correct spelling)?
If I recall correctly, there is a "fork-like" sliding part on the shaft of
every automobile's starter motor, that momentarily pushes the small starter
pinion into the main gear of the car's transmission, when you crank the
engine - so maybe we can suggest that AP change their confusing term, to an
AP
mount's "Bendix".
Any auto mechanics out there that can correct me on this?

Other suggestions?

Joe
Joe:
I didn't mean to have things get complicated.

I think "Polar Axis Assembly" would suffice.

Kent Kirkley


**************************************
See what's free at
http://www.aol.com.


[Non-text portions of this message have been removed]


Re: Advice please: Standard verus Rotating Pier Adapter

Joe Zeglinski
 

Hi Kent,

The way I figured it - the G11 head, complete, is 39 lbs, and no fun
lifting into position.
The AP900 RA with fork is 35 lbs. Add the RPA (about 5 lbs), and we are back
into the G11 weight category, which I was eagerly trying to get away from. It
still is an even possibility, but hauling the RPA around attached to the RA
assembly, is a minus.

Joe



Joe:
Roland even suggests that one can leave the mount attached to the RPA and
remove them both as a unit. If the pier is permanent, you can just replace
'the
unit' into the pier and probably keep polar alignment.

Kent Kirkley


Re: Re-run Made in America segment with Astro-Physics

Joe Zeglinski
 

Rick,

I've spent more than a couple of hours going through the messages
containing the elusive "Ratzenberger" to find the magic link. Email me the
link off line, if you have it.

Thanks,
Joe

----- Original Message -----
From: "Rick K" <JunkMailGoesHere@...>
To: <ap-gto@...>
Sent: Tuesday, April 17, 2007 8:56 PM
Subject: [ap-gto] Re: Re-run Made in America segment with Astro-Physics


The link is supplied in a message in the ap-ug messages. I used
skyinsight search (advanced) and found it earlier today. The link
appears to be up.


--- In ap-gto@..., "Joseph Zeglinski" <J.Zeglinski@...> wrote:

Hi Rick,

Whose site was the FTP download link? The stations or this
group's, an in
what section (Files, Photo)?
Anyway, I did a general search on "Ratzenberger", and saw all the
messages of
many others wanting to see the program, but having no access to the
US TV
channel. Interesting "legality" discussions, as well. I wonder, if a
copy were
on the AP install CD, if that could be considered "private viewing"
to pass
legal muster.

I guess I am out of luck of seeing it, otherwise. Oh well, maybe
the flic
wasn't that big a deal, after all.

Joe

----- Original Message -----
From: "Rick K" <JunkMailGoesHere@...>
To: <ap-gto@...>
Sent: Tuesday, April 17, 2007 9:54 AM
Subject: [ap-gto] Re: Re-run Made in America segment with Astro-Physics


It was made available for ftp download a month or so ago. I have no
idea if it is still available. Search the archived messages for the
address. Maybe it is still up on that website.

--- In ap-gto@..., "Joseph Zeglinski" <J.Zeglinski@>
wrote:

Hi,

For the benefit of those of us NOT living in the USA, and not
having
access to this TRAVEL channel ... Could some record the AP movie
segment, and
put "John Ratzenberger's Made in America TV program", in this
group's PHOTO
section, for the rest of us to enjoy. That might circumvent any
"legal" issues
AP might have with their putting it on the AP web site.
Otherwise, put it on U-TUBE, and tell us where to find it.

Thanks,
Joe


----- Original Message -----
From: "Marj" <marj@>
To: <ap-ug@...>
Cc: <ap-gto@...>
Sent: Monday, April 16, 2007 4:13 PM
Subject: [ap-gto] Re-run Made in America segment with Astro-Physics


John Ratzenberger's Made in America TV program on the Travel
channel will
rebroadcast the segment featuring Astro-Physics on Tuesday, April
17 and
Saturday, April 21. Please check your local listings for broadcast
times.
The first company profiled on this segment is Sub-Zero
refrigerators, so
look for Sub-Zero in the program description.

Check these links:
http://travel.discovery.com/tv-schedules/series.html?paid=26.14688.116314.25521.x
http://www.astro-physics.com/whatsnew/madeinamerica.htm


If you are attending NEAF next week and haven't seen the program,
please
stop by our booth for a private showing on our computer. We look
forward to
seeing alot of you at NEAF!


Marj Christen
Astro-Physics, Inc
11250 Forest Hills Road
Machesney Park, IL 61115
Phone: 815-282-1513
Fax: 815-282-9847
www.astro-physics.com
Please include this e-mail with your response.







To UNSUBSCRIBE, or for general information on the ap-gto list
see http://groups.yahoo.com/group/ap-gto
Yahoo! Groups Links






To UNSUBSCRIBE, or for general information on the ap-gto list
see http://groups.yahoo.com/group/ap-gto
Yahoo! Groups Links






To UNSUBSCRIBE, or for general information on the ap-gto list
see http://groups.yahoo.com/group/ap-gto
Yahoo! Groups Links




Re: Keypad problem ?

Joe Zeglinski
 

Thanks Dominik,

Are there two PCB's inside - one is the keypad, and the other, the
processor and display? I think Marj may be wondering if you had a problem just
with the keypad PCB ( which is made by another supplier), or the processor
PCB, if there is more than one board inside.

The picture will put everyone's mind at rest - or maybe something to watch out
for, in future. Anyway, it will help all of us, with a potential problem
someday.

Thanks, and dobra noc,
Joe

----- Original Message -----
From: "Dominik Wos" <dominik@...>
To: <ap-gto@...>
Sent: Tuesday, April 17, 2007 7:08 PM
Subject: [ap-gto] Re: Keypad problem ?


Hi Joe,

OK, I will once again dismantle the keypad to take some pictures and
will post them on the Group. You will see the repair and what is
inside the keypad.

All the best,
Dominik

--- In ap-gto@..., "Joseph Zeglinski" <J.Zeglinski@...>
wrote:

Hi Dominik,

Glad to hear that all is well, after the fix.

For the rest of us, perhaps, you could clarify, just in case we
run into a
similar problem. In anticipation of other's questions, (Marj was
not quite
clear on your post), perhaps we have a very slight misunderstanding
in
translation - when you mention "silver" traces.

I have never seen "silver" used in PCB contacts or traces on
circuit
boards - they are either gold plated or beryllium plated contacts,
and circuit
traces were, until recently perhaps, always lead/tin solder. I
wonder where
the "silver" comes in to play. Unless, silver is being used somehow
to replace
solder, in order to meet Europe's ROHS pollution standard - an
expensive
solution, but this board likely predates that requirement.

Also, circuit traces, even if they are the "old solder
standard", are
almost always covered by a green layer of protective "conformal
coating", on
good quality circuit board products, which must be standard for
Astro Physics
products, surely.

So, I don't quite understand where your friend found
anything "silver". Is
it possible that he is using our Polish term "srebny", which
describes things
that are "silver coloured", in referring to the "colour" of solder
(traces)?
Even so, I am surprised he could get to the solder trace without
some effort
to scrape away the green conformal coating, painted over it.

Be that as it may, it would appear that there was a possible
bad spot in
the "wave soldering" of the board, leaving a short segment of the
original
"copper trace" on the etched PCB exposed, which obviously has
corroded over
the last 5 years, or more. This break in the trace caused a loss of
some
signal in the Keypad circuit, which your friend expertly cleaned
and
resoldered - he has a good eye to have spotted it. Now everything
is operating
normally.
If so, I wonder about the quality checks made by the original
keypad
manufacturer.

Have I got this right?

Anyway, I probably just made a short story ... long ;-)
Best regards,
Joe (a.k.a. Jozef)


----- Original Message -----
From: "Dominik Wos" <dominik@...>
To: <ap-gto@...>
Sent: Tuesday, April 17, 2007 5:27 PM
Subject: [ap-gto] Re: Keypad problem ?


Czesc Jozefie,

U mnie wszystko OK. Dzieki :-)

So where the problem was ? According to my neighbour the plastic
keypad which is inside is very sensitive to corrosion (he
manyfactures electronics for agiculture machines and uses this
kind
of products). The paths are made from silver. Accourding to him
it is
a rather common problem esspecialy that I bought my mount second
hand
and I belive it is 2002.



To UNSUBSCRIBE, or for general information on the ap-gto list
see http://groups.yahoo.com/group/ap-gto
Yahoo! Groups Links




Re: Advice please: Standard verus Rotating Pier Adapter

Joe Zeglinski
 

Thanks Jeff,

That reinforces my decision to stay with RPA's on both tripod and fixed pier.

Actually, I had also considered having a machinist (horizontally &
vertically) "notch out" the pier mounting holes in two of my Flat Surface
Adapter (FSA), - one on the post, the other on the tripod - and leave a
"single RPA" attached to the fork, along with partially screwed in, (6) thumb
screws, so I could easily drop and twist the fork/RPA into either "slotted
FSA", just like a Losmandy G11 does into it's pier adapter. Then I figured it
is "almost" as easy as fiddling with those four screw in knobs on the fork (if
I don't lose one on the ground/snow). Besides, the RPA is pretty heavy, and
that would just about be a deal breaker for carrying weight, which was one of
the major factors, when I decided to upgrade from my two week old G11.

Appreciate this,

Joe

----- Original Message -----
From: "Jeff" <jlc@...>
To: <ap-gto@...>
Sent: Tuesday, April 17, 2007 6:37 PM
Subject: RE: [ap-gto] Advice please: Standard verus Rotating Pier Adapter


I've used both the SPA and RPA.

SPA on a 900 and RPA on a 1200.

I had my concerns/lack-of-belief with the RPA, but now I see the RPA is a
big jump over the SPA.
It is such a "subtle" difference that is THE BIG difference.

I suspect the RPA _requires_ the heavy duty az adjuster. But I suspect it
will work with the old style az adjuster, but not practically.
So, this would be the "only" reason to go with the SPA... but then the az
adjuster can be upgraded.

The only minor problem w/ the SPA is simply that if you ever need to move
the mount in AZ, you need to loosen all those bolts and retighten them.
The RPA is "no fuss". And it is SOLID due to the beefy AZ adjuster.

With the RPA, the AZ adjuster keeps it "set" in AZ.

With the SPA, the mount bolts keep it "set" in AZ, and the AZ adjusters just
"help keep it set".

Even with a fixed pier, I suspect there may be a need from time-to-time to
touch up the alignment.
(I'm not a fixed pier person, but where I live a) the ground moves every few
years (san francisco - living near a fault), and b) the ground is like clay
and moves with the change of seasons.)




_____

From: ap-gto@... [mailto:ap-gto@...] On Behalf Of
Joseph Zeglinski
Sent: Tuesday, April 17, 2007 10:47 AM
To: ap-gto@...
Subject: [ap-gto] Advice please: Standard verus Rotating Pier Adapter



Hi,

I would appreciate some advice about using the SPA versus RPA. I recently
purchased the RPA with my new AP900, since it looked like a better, wiser,
choice. Now I am considering a second pier adapter, for an alternative
permanent fixed pier.

I see how my RPA works , but I wonder, what are the difficulties with
using the Standard pier adapter, which made the RPA a more desirable,
somewhat
more expensive, option? I intend on transferring the AP900 between a field
tripod, and the permanent post in the yard, so the small inconvenience of
simply "loosening" the four hold down knobs for the Standard adapter fine
adjustment, may not justify the price difference, for me. There must be some

other aspect, or convenience, of using the RPA, I may have missed.

Much appreciated,
Joe







__________ NOD32 2198 (20070417) Information __________

This message was checked by NOD32 antivirus system.
http://www.eset.com








To UNSUBSCRIBE, or for general information on the ap-gto list
see http://groups.yahoo.com/group/ap-gto
Yahoo! Groups Links




Re: Re-run Made in America segment with Astro-Physics

observe_m13
 

The link is supplied in a message in the ap-ug messages. I used
skyinsight search (advanced) and found it earlier today. The link
appears to be up.


--- In ap-gto@..., "Joseph Zeglinski" <J.Zeglinski@...> wrote:

Hi Rick,

Whose site was the FTP download link? The stations or this
group's, an in
what section (Files, Photo)?
Anyway, I did a general search on "Ratzenberger", and saw all the
messages of
many others wanting to see the program, but having no access to the
US TV
channel. Interesting "legality" discussions, as well. I wonder, if a
copy were
on the AP install CD, if that could be considered "private viewing"
to pass
legal muster.

I guess I am out of luck of seeing it, otherwise. Oh well, maybe
the flic
wasn't that big a deal, after all.

Joe

----- Original Message -----
From: "Rick K" <JunkMailGoesHere@...>
To: <ap-gto@...>
Sent: Tuesday, April 17, 2007 9:54 AM
Subject: [ap-gto] Re: Re-run Made in America segment with Astro-Physics


It was made available for ftp download a month or so ago. I have no
idea if it is still available. Search the archived messages for the
address. Maybe it is still up on that website.

--- In ap-gto@..., "Joseph Zeglinski" <J.Zeglinski@>
wrote:

Hi,

For the benefit of those of us NOT living in the USA, and not
having
access to this TRAVEL channel ... Could some record the AP movie
segment, and
put "John Ratzenberger's Made in America TV program", in this
group's PHOTO
section, for the rest of us to enjoy. That might circumvent any
"legal" issues
AP might have with their putting it on the AP web site.
Otherwise, put it on U-TUBE, and tell us where to find it.

Thanks,
Joe


----- Original Message -----
From: "Marj" <marj@>
To: <ap-ug@...>
Cc: <ap-gto@...>
Sent: Monday, April 16, 2007 4:13 PM
Subject: [ap-gto] Re-run Made in America segment with Astro-Physics


John Ratzenberger's Made in America TV program on the Travel
channel will
rebroadcast the segment featuring Astro-Physics on Tuesday, April
17 and
Saturday, April 21. Please check your local listings for broadcast
times.
The first company profiled on this segment is Sub-Zero
refrigerators, so
look for Sub-Zero in the program description.

Check these links:
http://travel.discovery.com/tv-schedules/series.html?paid=26.14688.116314.25521.x
http://www.astro-physics.com/whatsnew/madeinamerica.htm


If you are attending NEAF next week and haven't seen the program,
please
stop by our booth for a private showing on our computer. We look
forward to
seeing alot of you at NEAF!


Marj Christen
Astro-Physics, Inc
11250 Forest Hills Road
Machesney Park, IL 61115
Phone: 815-282-1513
Fax: 815-282-9847
www.astro-physics.com
Please include this e-mail with your response.



[Non-text portions of this message have been removed]



To UNSUBSCRIBE, or for general information on the ap-gto list
see http://groups.yahoo.com/group/ap-gto
Yahoo! Groups Links






To UNSUBSCRIBE, or for general information on the ap-gto list
see http://groups.yahoo.com/group/ap-gto
Yahoo! Groups Links




Re: Advice please: Standard verus Rotating Pier Adapter

Kent Kirkley
 

In a message dated 4/17/07 8:48:38 PM, J.Zeglinski@... writes:


The AP900 RA with fork is 35 lbs.
'with fork' ??? What fork?

German equatorial mounts don't have forks, unless you are referring to the
mount's side plates.

Kent Kirkley



**************************************
See what's free at http://www.aol.com.


Re: Keypad problem ?

Dominik Wos <dominik@...>
 

Hi Joe,

OK, I will once again dismantle the keypad to take some pictures and
will post them on the Group. You will see the repair and what is
inside the keypad.

All the best,
Dominik

--- In ap-gto@..., "Joseph Zeglinski" <J.Zeglinski@...>
wrote:

Hi Dominik,

Glad to hear that all is well, after the fix.

For the rest of us, perhaps, you could clarify, just in case we
run into a
similar problem. In anticipation of other's questions, (Marj was
not quite
clear on your post), perhaps we have a very slight misunderstanding
in
translation - when you mention "silver" traces.

I have never seen "silver" used in PCB contacts or traces on
circuit
boards - they are either gold plated or beryllium plated contacts,
and circuit
traces were, until recently perhaps, always lead/tin solder. I
wonder where
the "silver" comes in to play. Unless, silver is being used somehow
to replace
solder, in order to meet Europe's ROHS pollution standard - an
expensive
solution, but this board likely predates that requirement.

Also, circuit traces, even if they are the "old solder
standard", are
almost always covered by a green layer of protective "conformal
coating", on
good quality circuit board products, which must be standard for
Astro Physics
products, surely.

So, I don't quite understand where your friend found
anything "silver". Is
it possible that he is using our Polish term "srebny", which
describes things
that are "silver coloured", in referring to the "colour" of solder
(traces)?
Even so, I am surprised he could get to the solder trace without
some effort
to scrape away the green conformal coating, painted over it.

Be that as it may, it would appear that there was a possible
bad spot in
the "wave soldering" of the board, leaving a short segment of the
original
"copper trace" on the etched PCB exposed, which obviously has
corroded over
the last 5 years, or more. This break in the trace caused a loss of
some
signal in the Keypad circuit, which your friend expertly cleaned
and
resoldered - he has a good eye to have spotted it. Now everything
is operating
normally.
If so, I wonder about the quality checks made by the original
keypad
manufacturer.

Have I got this right?

Anyway, I probably just made a short story ... long ;-)
Best regards,
Joe (a.k.a. Jozef)


----- Original Message -----
From: "Dominik Wos" <dominik@...>
To: <ap-gto@...>
Sent: Tuesday, April 17, 2007 5:27 PM
Subject: [ap-gto] Re: Keypad problem ?


Czesc Jozefie,

U mnie wszystko OK. Dzieki :-)

So where the problem was ? According to my neighbour the plastic
keypad which is inside is very sensitive to corrosion (he
manyfactures electronics for agiculture machines and uses this
kind
of products). The paths are made from silver. Accourding to him
it is
a rather common problem esspecialy that I bought my mount second
hand
and I belive it is 2002.


Re: Advice please: Standard verus Rotating Pier Adapter

Jeff <jlc@...>
 

I've used both the SPA and RPA.

SPA on a 900 and RPA on a 1200.

I had my concerns/lack-of-belief with the RPA, but now I see the RPA is a
big jump over the SPA.
It is such a "subtle" difference that is THE BIG difference.

I suspect the RPA _requires_ the heavy duty az adjuster. But I suspect it
will work with the old style az adjuster, but not practically.
So, this would be the "only" reason to go with the SPA... but then the az
adjuster can be upgraded.

The only minor problem w/ the SPA is simply that if you ever need to move
the mount in AZ, you need to loosen all those bolts and retighten them.
The RPA is "no fuss". And it is SOLID due to the beefy AZ adjuster.

With the RPA, the AZ adjuster keeps it "set" in AZ.

With the SPA, the mount bolts keep it "set" in AZ, and the AZ adjusters just
"help keep it set".

Even with a fixed pier, I suspect there may be a need from time-to-time to
touch up the alignment.
(I'm not a fixed pier person, but where I live a) the ground moves every few
years (san francisco - living near a fault), and b) the ground is like clay
and moves with the change of seasons.)




_____

From: ap-gto@... [mailto:ap-gto@...] On Behalf Of
Joseph Zeglinski
Sent: Tuesday, April 17, 2007 10:47 AM
To: ap-gto@...
Subject: [ap-gto] Advice please: Standard verus Rotating Pier Adapter



Hi,

I would appreciate some advice about using the SPA versus RPA. I recently
purchased the RPA with my new AP900, since it looked like a better, wiser,
choice. Now I am considering a second pier adapter, for an alternative
permanent fixed pier.

I see how my RPA works , but I wonder, what are the difficulties with
using the Standard pier adapter, which made the RPA a more desirable,
somewhat
more expensive, option? I intend on transferring the AP900 between a field
tripod, and the permanent post in the yard, so the small inconvenience of
simply "loosening" the four hold down knobs for the Standard adapter fine
adjustment, may not justify the price difference, for me. There must be some

other aspect, or convenience, of using the RPA, I may have missed.

Much appreciated,
Joe







__________ NOD32 2198 (20070417) Information __________

This message was checked by NOD32 antivirus system.
http://www.eset.com


Re: Keypad problem ?

Joe Zeglinski
 

Hi Dominik,

Glad to hear that all is well, after the fix.

For the rest of us, perhaps, you could clarify, just in case we run into a
similar problem. In anticipation of other's questions, (Marj was not quite
clear on your post), perhaps we have a very slight misunderstanding in
translation - when you mention "silver" traces.

I have never seen "silver" used in PCB contacts or traces on circuit
boards - they are either gold plated or beryllium plated contacts, and circuit
traces were, until recently perhaps, always lead/tin solder. I wonder where
the "silver" comes in to play. Unless, silver is being used somehow to replace
solder, in order to meet Europe's ROHS pollution standard - an expensive
solution, but this board likely predates that requirement.

Also, circuit traces, even if they are the "old solder standard", are
almost always covered by a green layer of protective "conformal coating", on
good quality circuit board products, which must be standard for Astro Physics
products, surely.

So, I don't quite understand where your friend found anything "silver". Is
it possible that he is using our Polish term "srebny", which describes things
that are "silver coloured", in referring to the "colour" of solder (traces)?
Even so, I am surprised he could get to the solder trace without some effort
to scrape away the green conformal coating, painted over it.

Be that as it may, it would appear that there was a possible bad spot in
the "wave soldering" of the board, leaving a short segment of the original
"copper trace" on the etched PCB exposed, which obviously has corroded over
the last 5 years, or more. This break in the trace caused a loss of some
signal in the Keypad circuit, which your friend expertly cleaned and
resoldered - he has a good eye to have spotted it. Now everything is operating
normally.
If so, I wonder about the quality checks made by the original keypad
manufacturer.

Have I got this right?

Anyway, I probably just made a short story ... long ;-)
Best regards,
Joe (a.k.a. Jozef)

----- Original Message -----
From: "Dominik Wos" <dominik@...>
To: <ap-gto@...>
Sent: Tuesday, April 17, 2007 5:27 PM
Subject: [ap-gto] Re: Keypad problem ?


Czesc Jozefie,

U mnie wszystko OK. Dzieki :-)

So where the problem was ? According to my neighbour the plastic
keypad which is inside is very sensitive to corrosion (he
manyfactures electronics for agiculture machines and uses this kind
of products). The paths are made from silver. Accourding to him it is
a rather common problem esspecialy that I bought my mount second hand
and I belive it is 2002.