Jump to content

  •  

CNers have asked about a donation box for Cloudy Nights over the years, so here you go. Donation is not required by any means, so please enjoy your stay.

Photo

Quantum 4 Serial Number

  • Please log in to reply
7 replies to this topic

#1 Matt Looby

Matt Looby

    Apollo

  • *****
  • topic starter
  • Posts: 1,332
  • Joined: 08 Jul 2003
  • Loc: Lake Champlain Valley

Posted 22 June 2019 - 01:17 AM

Hi Folks,

 

Does anyone know  what "GI"  stands for?

 

The serial # of my Q4 is GI 102 372

 

I know this was the 372nd 102mm Mak-Cass produced but what the heck is GI?

 

Thanks,

 

Matt



#2 agmoonsolns

agmoonsolns

    Surveyor 1

  • *****
  • Posts: 1,651
  • Joined: 17 Sep 2018

Posted 22 June 2019 - 02:17 AM

General Inspection or General Instrument? Government Instrument? Which tube style does it have? Did it come with a mount or just a mounting plate attached to the tube? I am wondering if it's one of the versions used for industrial work as long distance microscopes in harsh environments? Is the tube white, black, or blue?

 

 

 

 

Enjoy the post while it lasts, mine keep getting deleted. :-(



#3 Matt Looby

Matt Looby

    Apollo

  • *****
  • topic starter
  • Posts: 1,332
  • Joined: 08 Jul 2003
  • Loc: Lake Champlain Valley

Posted 22 June 2019 - 06:36 AM

General Inspection or General Instrument? Government Instrument? Which tube style does it have? Did it come with a mount or just a mounting plate attached to the tube? I am wondering if it's one of the versions used for industrial work as long distance microscopes in harsh environments? Is the tube white, black, or blue?

 

 

 

 

Enjoy the post while it lasts, mine keep getting deleted. :-(

Thanks- it is a mounted Quantum 4 and control box, not the Quantum 100 Series.

Attached Thumbnails

  • optech.jpg


#4 Matt Looby

Matt Looby

    Apollo

  • *****
  • topic starter
  • Posts: 1,332
  • Joined: 08 Jul 2003
  • Loc: Lake Champlain Valley

Posted 22 June 2019 - 11:00 AM

I believe G= 7th letter in alphabet while I= the 9th letter, thus, "GI"= '79

 

or 1979.

 

Therefore the telescope is the 372nd built 102mm Mak which was made sometime in the year 1979.

 

I've seen Serial # that contain "GH"  which would indicate the year '78 or 1978.

 

The serial # of my Q4 is GI 102 372

 

This is similar to automobiles where the ninth digit of the serial number indicates the year  where A=1, B=2, .etc.... J=0.

 

If there is a "C" on the tail end of the serial it indicates silver coatings.

 

Matt


Edited by Matt Looby, 22 June 2019 - 11:06 AM.


#5 STE411

STE411

    Explorer 1

  • -----
  • Posts: 61
  • Joined: 04 Aug 2014

Posted 27 June 2019 - 03:56 PM

Hi Matt,

I think you are right that GI=79, 1979. The SN on my Q6 is GH 15374-C and I bought it in 1978.

Attached Thumbnails

  • 5460E28C-8E81-4B12-95BD-676FDF2E08A5.jpeg

  • Matt Looby and np3c like this

#6 Matt Looby

Matt Looby

    Apollo

  • *****
  • topic starter
  • Posts: 1,332
  • Joined: 08 Jul 2003
  • Loc: Lake Champlain Valley

Posted 27 June 2019 - 04:38 PM

Yes- that is a 1978  with silver coatings!  It was the 74th built unit!



#7 np3c

np3c

    Lift Off

  • -----
  • Posts: 11
  • Joined: 03 Sep 2018
  • Loc: Alexandria, VA.

Posted 29 June 2019 - 01:02 PM

Just looked at my Quantum 4" Serial #GH102120. #120 made in 1978?


  • Matt Looby likes this

#8 Matt Looby

Matt Looby

    Apollo

  • *****
  • topic starter
  • Posts: 1,332
  • Joined: 08 Jul 2003
  • Loc: Lake Champlain Valley

Posted 29 June 2019 - 03:57 PM

Just looked at my Quantum 4" Serial #GH102120. #120 made in 1978?

Yes

 

G=7, H=8  = 78 or 1978,  120th unit built, early model.  

 

1980 would be HJ  = 80 if there are any of those.


  • np3c likes this


CNers have asked about a donation box for Cloudy Nights over the years, so here you go. Donation is not required by any means, so please enjoy your stay.


Recent Topics






Cloudy Nights LLC
Cloudy Nights Sponsor: Astronomics