Date   

Re: 7904A readout bounce

NigelP
 

So, further investigation demonstrates more of what I've already noted. Scenario: 7904A loaded with 2x 7A26, 7B92A, 7D15 and ALT set on both vertical PIs and mainframe set to ALT...... if I overlay all four traces on top of each other there is NO bouncing of the readout . As you increment any trace position towards top/bottom of the screen the bounce gets increasingly larger reaching around 0.1 major division (therefore readout bounce magnitude is a direct function of trace vertical position). Sweep speed in the region of 50mS/Div +/- some shows up nicely, but any variation of sweep speed simply varies the level of visual annoyance. Any combination of ALT setting produces the same result.

Similarly, substituting a 0587 Signal Standardiser into either PI slot and set up to perform the handbook "Thermal Comp" procedure, as mooted earlier in the thread, the readout bounces away merrily to the step waveform rising/falling.

Also using for example a single 7A26 set to CH1 and mainframe set to LEFT (so no ALT settings) the readout shifts up and down according to PI vertical position setting.... a direct and linear relationship between SHIFT potentiometer setting and readout vertical screen position. Readout movement is in anti-phase to trace shift movement.


Re: c-12 camera

Brian
 

Hi , I saw those types but the ones I used and I am not sure if the first is a bona-fide 600 type --- 665 B/W with negative -- cant supply . Also the one really needed for fast work type 47 3000asa roll film ( can push to 10,000asa ) cant supply

From: Chuck Harris <cfharris@...>
To: TekScopes@groups.io
Sent: Tuesday, 19 December 2017, 16:12
Subject: Re: [TekScopes] Re: c-12 camera

What exactly did you ask them?

They seem to have:

i-type in both color and B&W
600 in both color and B&W
SX70 in color and B&W
Spectra, though currently sold out
8x10, B&W, color sold out.

I didn't see any sign of the old roll type
of film, which would leave out any of the camera
backs that used that film.

600 and SX70 were used in lots of scope
and microscope camera backs.

-Chuck Harris


Brian via Groups.Io wrote:
For the groups benefit , I have been in contact with Polaroid . Their reply is as follows :---
|
|  Ilona Cerowska (Polaroid Originals Support)  Dec 19, 10:31 AM EST  Hi Brian,

Thanks for your message.

Unfortunately we can't produce these film types please we don't have the necessary machinery. As far as I'm aware, there is no one else currently producing these film types.

I'm sorry to not be able to help further here.

Thanks and kind regards,
Ilona |

  |

So its not such good news as hoped for .

      From: Chuck Harris <cfharris@...>
  To: TekScopes@groups.io
  Sent: Tuesday, 19 December 2017, 14:37
  Subject: Re: [TekScopes] Re: c-12 camera
   
For the group's edification, the company that had been
making new polaroid film for legacy polaroid cameras,
"The Impossible Project", a Polish firm, has acquired
the polaroid brand, and intellectual property related
to the instant film, and its manufacture.  This is in
addition to having acquired polaroid's last film
manufacturing factory, in 2008.

Most all of the polaroid film types are available new,
and under the polaroid brand.

This is as of May 12, 2017.

<https://www.polaroid.com/news/polaroid-acquired-by-new-ownership-group>

If you want to use your scope cameras, with polaroid backs,
you can use your scope cameras, with real polaroid film.

Now, if you could just find a camera, with the right
adapter ring to fit your scope...

-Chuck Harris


brianas1948@... [TekScopes] wrote:
Hi , I have 2 x C-12 camera's and adapters for the 500 series scopes , one also has a graticule projector attachment . I would need to get these out of storage to see what condition they are in before setting any price but I am prepared to be very reasonable for anyone interested . I have not been able to get any reliable supply of polaroid film for these for some while and I now use the C1001/C1002 digital scope camera's -- but on 7k series scopes




   

|  | Virus-free. www.avg.com  |










| | Virus-free. www.avg.com |


Re: Tek Knob Project - scan and make

 

A small problem with this plan is the interior of the knob, which is a METAL (aluminum) core, threaded for one or more steel setscrews. I am certain an all-plastic version would not work.

regards,
walter


Not Tek, but scopish, and interesting...

 

I have broken up a few Data Check multiple rack mounted scopes. These amazing arrays provide up to 7 plug-in scopes in a single rack unit, very interesting little gadgets. they were used to monitor missile telemetry and other many-source lab functions. I am hoping to find a manual for the 1200B version, any luck out there? no web stuff was located anywhere. 7 scopes with full controls in 5 1/4 inches of rack space is pretty impressive.

I use these just for the CRTs ( a rare by very handy miniature rectangular AEG D7-233GY), and scrap all the rest. If anybody wants the little scope assemblies to use with other CRTs, let me know. I can make that happen. Some amazing through hole assembly and packaging in these babies.

Thanks to the hard working Dennis for moving our group to a new home!
all the best.
walter (walter2 -at- sphere.bc.ca)
sphere research corp.


Re: c-12 camera

Chuck Harris
 

What exactly did you ask them?

They seem to have:

i-type in both color and B&W
600 in both color and B&W
SX70 in color and B&W
Spectra, though currently sold out
8x10, B&W, color sold out.

I didn't see any sign of the old roll type
of film, which would leave out any of the camera
backs that used that film.

600 and SX70 were used in lots of scope
and microscope camera backs.

-Chuck Harris


Brian via Groups.Io wrote:

For the groups benefit , I have been in contact with Polaroid . Their reply is as follows :---
|
| Ilona Cerowska (Polaroid Originals Support) Dec 19, 10:31 AM EST Hi Brian,

Thanks for your message.

Unfortunately we can't produce these film types please we don't have the necessary machinery. As far as I'm aware, there is no one else currently producing these film types.

I'm sorry to not be able to help further here.

Thanks and kind regards,
Ilona |

|

So its not such good news as hoped for .

From: Chuck Harris <cfharris@...>
To: TekScopes@groups.io
Sent: Tuesday, 19 December 2017, 14:37
Subject: Re: [TekScopes] Re: c-12 camera

For the group's edification, the company that had been
making new polaroid film for legacy polaroid cameras,
"The Impossible Project", a Polish firm, has acquired
the polaroid brand, and intellectual property related
to the instant film, and its manufacture. This is in
addition to having acquired polaroid's last film
manufacturing factory, in 2008.

Most all of the polaroid film types are available new,
and under the polaroid brand.

This is as of May 12, 2017.

<https://www.polaroid.com/news/polaroid-acquired-by-new-ownership-group>

If you want to use your scope cameras, with polaroid backs,
you can use your scope cameras, with real polaroid film.

Now, if you could just find a camera, with the right
adapter ring to fit your scope...

-Chuck Harris


brianas1948@... [TekScopes] wrote:
Hi , I have 2 x C-12 camera's and adapters for the 500 series scopes , one also has a graticule projector attachment . I would need to get these out of storage to see what condition they are in before setting any price but I am prepared to be very reasonable for anyone interested . I have not been able to get any reliable supply of polaroid film for these for some while and I now use the C1001/C1002 digital scope camera's -- but on 7k series scopes






| | Virus-free. www.avg.com |





What I can help with and what I can't help with

 

My apologies but I have been so focused on handling all the details of
setting up our new home that I have had no time to "Look around" at how you
get to everything.



Thank you to Craig and Dave Henderson for blazing a trail through the new
pathways to our files and photos. When I have the time I will be using their
suggestions on how to find the files, photos, and archives I am interested
in.



I can clear up a few things about what will be missing. Groups.io cannot
transfer Attachments. Fortunately we didn't have a lot of those.



This is what Groups.io did transfer

* Members
* Messages
* Photos
* Files
* Links
* Databases

Here are some statistics:

1. Total Members Processed: 8582
2. Successfully Added: 7054
3. Bounced Members (Skipped): 1432
4. Moderated Members: 2
5. Members on Digest: 883
6. Undisclosed Emails (Skipped): 28

As I learn more about the transfer and how it went I will report those
details to the group.

That's it for the moment.

Dennis Tillman W7PF


Re: Welcome!

Sergey Kubushyn
 

On Tue, 19 Dec 2017, Michael Dunn wrote:

The dust has settled, and here we are :-)

Functionality is virtually identical to Yahoo. And I think we’ll be
pleased with the return to a clean, responsive, and relatively logical web
site.

Dennis will no doubt soon send out donation info.
Yep. please send the info so we would be able to make our contributions as
soon as possible.

---
******************************************************************
* KSI@home KOI8 Net < > The impossible we do immediately. *
* Las Vegas NV, USA < > Miracles require 24-hour notice. *
******************************************************************


Re: c-12 camera

Brian
 

For the groups benefit , I have been in contact with Polaroid . Their reply is as follows :---
|
| Ilona Cerowska (Polaroid Originals Support) Dec 19, 10:31 AM EST Hi Brian,

Thanks for your message.

Unfortunately we can't produce these film types please we don't have the necessary machinery. As far as I'm aware, there is no one else currently producing these film types.

I'm sorry to not be able to help further here.

Thanks and kind regards,
Ilona |

|

So its not such good news as hoped for .

From: Chuck Harris <cfharris@...>
To: TekScopes@groups.io
Sent: Tuesday, 19 December 2017, 14:37
Subject: Re: [TekScopes] Re: c-12 camera

For the group's edification, the company that had been
making new polaroid film for legacy polaroid cameras,
"The Impossible Project", a Polish firm, has acquired
the polaroid brand, and intellectual property related
to the instant film, and its manufacture.  This is in
addition to having acquired polaroid's last film
manufacturing factory, in 2008.

Most all of the polaroid film types are available new,
and under the polaroid brand.

This is as of May 12, 2017.

<https://www.polaroid.com/news/polaroid-acquired-by-new-ownership-group>

If you want to use your scope cameras, with polaroid backs,
you can use your scope cameras, with real polaroid film.

Now, if you could just find a camera, with the right
adapter ring to fit your scope...

-Chuck Harris


brianas1948@... [TekScopes] wrote:
Hi , I have 2 x C-12 camera's and adapters for the 500 series scopes , one also has a graticule projector attachment . I would need to get these out of storage to see what condition they are in before setting any price but I am prepared to be very reasonable for anyone interested . I have not been able to get any reliable supply of polaroid film for these for some while and I now use the C1001/C1002 digital scope camera's -- but on 7k series scopes






| | Virus-free. www.avg.com |


Tek Knob Project - scan and make

Kuba Ober
 

Two things came to my mind in relation to the tek knobs index project:

1. Instead of taking just a few photos, a larger number properly exposed photos that cover the entire part from all sides could be used to produce a point cloud and then a 3D-printable mesh. I can cover the subscription cost of the software needed - it’s not exactly cheap.

Alternatively, manual measurements could be made for OpenSCad models - I’m sure that a lot of those knobs are slight variants and easy to model.

I can offer to process 25 knobs a month using either process, resulting in a printable STL file. Over a year or two presumably we could have reproducible models of all knobs that way. Perhaps sorting the work in order of popularity/demand would be useful.

I have 0 clue about such order and would follow whatever input the group has - as long as I wouldn’t have to decide on it. In other words: send me the knobs to process and I will process them and ship them back, but don’t make me choose them :)

2. Homemade 3D prints in ABS can be vapor smoothed and look beautiful with no other manual post-processing of the print. They can also be painted.

Alternatively, various professional printing services can print those knobs nicely from various materials, for a low cost: the knobs have small volume and that’s what mostly affects the price.


Should this be of interest, feel free to message me directly for a shipping address. I will turn around 25 knobs in 30 calendar days and will cover the cost of shipping them back.

All the best, Kuba


Re: c-12 camera

Brian
 

Hi Chuck , thats great news . The last film I could get was made by Fuji but from what I have heard they no longer make it . Maybe I'll keep hold of my C12's


From: Chuck Harris <cfharris@...>
To: TekScopes@groups.io
Sent: Tuesday, 19 December 2017, 14:37
Subject: Re: [TekScopes] Re: c-12 camera

For the group's edification, the company that had been
making new polaroid film for legacy polaroid cameras,
"The Impossible Project", a Polish firm, has acquired
the polaroid brand, and intellectual property related
to the instant film, and its manufacture.  This is in
addition to having acquired polaroid's last film
manufacturing factory, in 2008.

Most all of the polaroid film types are available new,
and under the polaroid brand.

This is as of May 12, 2017.

<https://www.polaroid.com/news/polaroid-acquired-by-new-ownership-group>

If you want to use your scope cameras, with polaroid backs,
you can use your scope cameras, with real polaroid film.

Now, if you could just find a camera, with the right
adapter ring to fit your scope...

-Chuck Harris


brianas1948@... [TekScopes] wrote:
Hi , I have 2 x C-12 camera's and adapters for the 500 series scopes , one also has a graticule projector attachment . I would need to get these out of storage to see what condition they are in before setting any price but I am prepared to be very reasonable for anyone interested . I have not been able to get any reliable supply of polaroid film for these for some while and I now use the C1001/C1002 digital scope camera's -- but on 7k series scopes






| | Virus-free. www.avg.com |


Re: c-12 camera

Chuck Harris
 

For the group's edification, the company that had been
making new polaroid film for legacy polaroid cameras,
"The Impossible Project", a Polish firm, has acquired
the polaroid brand, and intellectual property related
to the instant film, and its manufacture. This is in
addition to having acquired polaroid's last film
manufacturing factory, in 2008.

Most all of the polaroid film types are available new,
and under the polaroid brand.

This is as of May 12, 2017.

<https://www.polaroid.com/news/polaroid-acquired-by-new-ownership-group>

If you want to use your scope cameras, with polaroid backs,
you can use your scope cameras, with real polaroid film.

Now, if you could just find a camera, with the right
adapter ring to fit your scope...

-Chuck Harris


brianas1948@... [TekScopes] wrote:

Hi , I have 2 x C-12 camera's and adapters for the 500 series scopes , one also has a graticule projector attachment . I would need to get these out of storage to see what condition they are in before setting any price but I am prepared to be very reasonable for anyone interested . I have not been able to get any reliable supply of polaroid film for these for some while and I now use the C1001/C1002 digital scope camera's -- but on 7k series scopes


OT: Test / First post / Seasons Greetings

Fabio Trevisan
 

Hello Dennis and all,

This is just a test for posting to the Tekscopes@groups.io.

I take the opportunity to wish to you all a Very Happy Christmas and a
Joyful, Prosperous and Healthy 2018.

Rgrds from Brazil,

Fabio Trevisan


Number of posts

Craig Sawyers <c.sawyers@...>
 

Well, that is a sobering number. Since I joined the list in 2001, I've made 5598 posts. 5599 now ;-)



Craig


New link collection

Michael Dunn
 

I just created a list of some scope-related articles on EDN…



https://groups.io/g/TekScopes/table?id=2209


Re: move: Archive, files etc, will they stay or move ?

Artekmedia <manuals@...>
 

Automagic logins are a function of your "saved passwords" settings in your particular operating system/browser and not groups.io

Cheers
-DC
manuals@...

On 12/19/2017 8:14 AM, Chris Wilson wrote:
Mea culpa, I have a log in but wrongly assumed I would be automagically
logged in each time. Manually logged in and now I see the files and
photos. Thanks for your patience, I'm not safe out these days ;)




Best Regards,
Chris Wilson. 2E0ILY


> Chris

As explained earlier you need a groups.io login if you don't already
have one you will need to create on, instructions were in the earlier
emails. Just because you are getting Tekscopes email does not
necessarily mean that you have a groups.io login ( not unlike yahoo
really in this case)
Next log into groups .io and then come back to any email from tekscope
and at the bottom you will find the following link
Group Home:https://groups.io/g/TekScopes
Click on the link which take you to the Tekscopes home page. There
you will see a set of tabs on the left in those are ones marked
"Photos" anf "Files" respectively click on those and viola you find all the past p[ixs and files
Dave
manuals@...





--
Dave
Manuals@...
www.ArtekManuals.com


Re: move: Archive, files etc, will they stay or move ?

Chris Wilson
 

Got it now, it was me assuming I would automatically be logged in,
thanks Craig!




Best Regards,
Chris Wilson. 2E0ILY

I had nothing to do with the move, Chris, so I'm the wrong person to ask. But just browsing around
the Tekscopes.io homepage and tabs everything seems to be there. It is a damned sight more
intuitive, and quicker, that the damnable Yahoo.
Craig


Re: move: Archive, files etc, will they stay or move ?

Chris Wilson
 

Mea culpa, I have a log in but wrongly assumed I would be automagically
logged in each time. Manually logged in and now I see the files and
photos. Thanks for your patience, I'm not safe out these days ;)




Best Regards,
Chris Wilson. 2E0ILY

Chris
As explained earlier you need a groups.io login if you don't already
have one you will need to create on, instructions were in the earlier
emails. Just because you are getting Tekscopes email does not
necessarily mean that you have a groups.io login ( not unlike yahoo
really in this case)
Next log into groups .io and then come back to any email from tekscope
and at the bottom you will find the following link
Group Home:https://groups.io/g/TekScopes
Click on the link which take you to the Tekscopes home page. There
you will see a set of tabs on the left in those are ones marked
"Photos" anf "Files" respectively click on those and viola you find all the past p[ixs and files

Dave
manuals@...


Re: Searching Photo Albums

Artekmedia <manuals@...>
 

The PHOTO section does seem to be in "Folder NAME" order so until the SEARCH thing is resolved you track down a couple of layers. The 7603 folder is the 10th grouping ( at the bottom of the first page) ...on my browser
-DC
manuals@...

On 12/19/2017 8:06 AM, Craig Sawyers wrote:
Maybe I'm just being a little dense, but I can't find a way to search for a particular photo album.
So if I was looking for all albums which contained, say, 7603?


Craig



--
Dave
Manuals@...
www.ArtekManuals.com


Re: move: Archive, files etc, will they stay or move ?

Craig Sawyers <c.sawyers@...>
 

Have all the files and photos been moved to .io though Craig? As in with Yahoo you could
"Visit your
group" and then go to the Files or Photos section? Thanks.




Best Regards,
Chris Wilson. 2E0ILY
I had nothing to do with the move, Chris, so I'm the wrong person to ask. But just browsing around
the Tekscopes.io homepage and tabs everything seems to be there. It is a damned sight more
intuitive, and quicker, that the damnable Yahoo.

Craig


Re: Searching Photo Albums

Artekmedia <manuals@...>
 

Good point...The FILES section has a SEARCH window but PHOTOS does not seem to

-DC
manuals@...

On 12/19/2017 8:06 AM, Craig Sawyers wrote:
Maybe I'm just being a little dense, but I can't find a way to search for a particular photo album.
So if I was looking for all albums which contained, say, 7603?


Craig



--
Dave
Manuals@...
www.ArtekManuals.com