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Kirt Blattenberger - RF Cafe Webmaster

Copyright: 1996 - 2024
Webmaster:
    Kirt Blattenberger,

    BSEE - KB3UON

RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The World Wide Web (Internet) was largely an unknown entity at the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps while typing up your telephone line, and a nice lady's voice announced "You've Got Mail" when a new message arrived...

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Poll: Are You Old Enough to Remember Polaroid Screen Capture? - RF Cafe Forums

The original RF Cafe Forums were shut down in late 2012 due to maintenance issues - primarily having to spend time purging garbage posts from the board. At some point I might start the RF Cafe Forums again if the phpBB software gets better at filtering spam. Note: The RF Cafe Forums were reconstituted in April 2021!

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Are You Old Enough to Remember Polaroid Screen Capture?
Yes, unfortunately, but no more    54%  [ 7 ]
Yes, and I still use it    8%  [ 1 ]
Yes, but I never used it    23%  [ 3 ]
No, thankfully    15%  [ 2 ]

Total votes : 13

Kirt Blattenberger
 Post subject: Are You Old Enough to Remember Polaroid Screen Capture?
Posted: Fri May 18, 2007 10:19 am 
 
Site Admin
User avatar

Joined: Sun Aug 03, 2003 2:02 pm
Posts: 451
Location: Erie, PA
Greetings:

With the anniversary of the Polaroid camera a couple days ago, it brought to mind the good(?) old days of doing o-scope and spectrum analyzer screen captures using Polaroid cameras and the hoods. Of course at the same time was the use of x-y pen plotters. Now that most TE comes with a USB, GPIB, or printer port, those days are mostly gone. My guess is that except for in people's basements and garages, there are not many locations remaining where the aforementioned plotters and cameras are still used.

Image

You can still find some of the hoods on eBay,

http://cgi.ebay.com/Tektronix-C-30-Osci ... dZViewItem

as well as x-y pen plotters/recorders

http://cgi.ebay.com/Hewlett-Packard-HP- ... dZViewItem

How about you: Are you old enough to have used the Polaroid camera?

_________________
- Kirt Blattenberger :smt024
RF Cafe Progenitor & Webmaster


 
   
 
rftroubleshooter
 Post subject:
Posted: Fri May 18, 2007 11:04 am 
 
Captain
 

Joined: Wed May 16, 2007 4:16 pm
Posts: 7
What do you mean "old enough"??? I still have one of those.

_________________
Steve Montgomery
http://www.rftroubleshooter.com


 
   
 
Kirt Blattenberger
 Post subject:
Posted: Fri May 18, 2007 11:36 am 
 
Site Admin
User avatar

Joined: Sun Aug 03, 2003 2:02 pm
Posts: 451
Location: Erie, PA
Greetings Steve:

Did you ever get my message via your ________ website? I tried sending e-mails to two different addresses, but kept getting error messages.

_________________
- Kirt Blattenberger :smt024
RF Cafe Progenitor & Webmaster


 
   
 
rftroubleshooter
 Post subject:
Posted: Fri May 18, 2007 1:44 pm 
 
Captain
 

Joined: Wed May 16, 2007 4:16 pm
Posts: 7
I switched my hosting companies over the last two days and I just got my e-mail working; at least I think I do. Try to send one again. Thanks

stevem@rftroubleshooter.com

_________________
Steve Montgomery
http://www.rftroubleshooter.com


 
   
 
wb9jtk
 Post subject:
Posted: Tue May 29, 2007 5:11 pm 
 
Captain
User avatar

Joined: Tue Dec 26, 2006 5:39 pm
Posts: 21
Polaroid ? You know how hard it is to find film ? And you gotta wait like 2 minutes to see how the shot came out !

I use a digital camera for CRT shots ! I know instantly how it looks and I can then adjust the graticule illumination and the beam intensity to get the best shot.

A $200 digital camera plus a $1,000 used 'old' network analyzer performs as well as a $15,000 'not-as-old' network analyzer ! (ok ok ok, it does take quite a while to determine the actual impedance with my HP8754A where as the new ones tell us in a microsecond.)

Another great thing with that "old" equipment is I can aim a web-camera at the CRT and show what is going on LIVE over the internet just as well as one of the new-fangled-expensive units that has a web-interface and ethernet built in.


 
   
 
mmaassel
 Post subject:
Posted: Wed Jun 06, 2007 9:22 am 
 
Colonel
User avatar

Joined: Mon Apr 10, 2006 12:43 pm
Posts: 30
Good day.

Does anyone else remember using a soldering pencil to "write" on the Polaroid picture? It was an interesting way to record date, time, and instrument settings and I used it for many years.

Michael




Posted  11/12/2012
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