EEVblog Electronics Community Forum
Products => Test Equipment => Topic started by: dtRCasa on January 21, 2015, 08:05:17 pm
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Where there other manufactures of small, portable DC powered scopes like the sony/tek 200 / 300 series, or was it just Tektronix?
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The 300 series were Sony/Tek. Included in that was the 308 logic/signature analyzer. Pretty cute, but it's only 8 bit.
I remember a very small, maybe 1 inch mini CRT scope that was available, although the name of the manufacturer escapes me. Might have been 1 MHz bandwidth.
Ah, now I remember. It was NLS - Non Linear Systems. The MS-230 was a 2 channel 30 MHz triggered scope, although there were other models as well. They ran on batteries or wall warts. Here's a pic of the ms-230:
http://www.stevenjohnson.com/nls/pics/nls-ms-230.jpg (http://www.stevenjohnson.com/nls/pics/nls-ms-230.jpg)
There's an MS-230 on ebay now currently at $72. Personally, I'd take the Sony/Tek 335 over that even if it's a bit bigger.
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ops :)
I have written in the tread of restoration Classic Tek the word "mostly" bec. the 310, 310A are not japanese, and the half warm followers like 316, 317, 321 I don`t know
305 is a Sony-Tek, 323+324 also. So we cannot make shure who made it by the Type-number.
Also it must no be a mini, 370 is a hughe apparatus :)
NLS, yeah. Use the german mini-CRT D5-100 3x4cm. The little NLS are much faster, they go up to 15MHz !
Siemens made one, also a slowly. And a glowing mini was build by GEC in the states, not DC powered.
Then I remeber one what have a glass lense you can put on the screen to become a larger picture, dont know the name in the moment.
greetings
Martin
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https://archiwum.allegro.pl/oferta/oscyloskop-philips-pm-3010-i7373275041.html
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Smallest one I know of:
(https://imgur.com/L1eQfN7.jpg)
Took 4x C cells.
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the smallest scope with a true CRT I know is a homebrew unit made with the searcher CRT from a VHS video camera.
Without umbrella no chance to work with that :) But the little apparatus can only display NF bec. the CRT have a magnetic deflection.
seen in the german elektronikforum
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I love the vintage analog scopes, so far I have 3, a sony/tek 235, tek 214, and a nls ms-15, and a waterman pocktscope S10-A.
I found that this thread has a good list of the different ones available. There are also quite a few small russian scopes, but those don't pop up very often.
https://www.eevblog.com/forum/testgear/vintage-miniature-oscilloscopes-how-many-were-there/ (https://www.eevblog.com/forum/testgear/vintage-miniature-oscilloscopes-how-many-were-there/)
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[attachimg=1]
:)
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don't forget NLS miniscope.
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Found a picture of my collection, so I thought I'd share.
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the 323, nice. Build around 1967, all transistors are in sockets. Still a master in low battery consumption.
Tek 214 storage.
Fluke 8600A.
the tube scope I don`t know.
And the little NLS, is the one channel, MS 15
Martin
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Ah! East germany (GDR) oscilloscope is very cute.. but it doesn't run at DC Power.
RFT Picoskop
https://www.ebay.de/itm/DDR-Picoskop/174153530855?hash=item288c5bfde7:g:qdgAAOSwiu5d7P6R (https://www.ebay.de/itm/DDR-Picoskop/174153530855?hash=item288c5bfde7:g:qdgAAOSwiu5d7P6R)
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Got all of those correct. The tube scope is the waterman S-10-A pocketscope. It's actually the scope that got me into vintage electronics after seeing this video. It's amazing what they were able to do with only 4 tubes.
https://www.youtube.com/watch?v=zkFddiu2Dvk&feature=emb_title (https://www.youtube.com/watch?v=zkFddiu2Dvk&feature=emb_title)
the 323, nice. Build around 1967, all transistors are in sockets. Still a master in low battery consumption.
Tek 214 storage.
Fluke 8600A.
the tube scope I don`t know.
And the little NLS, is the one channel, MS 15
Martin
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Where there other manufactures of small, portable DC powered scopes like the sony/tek 200 / 300 series, or was it just Tektronix?
I used to have a small scope made by Non Linear Systems (NLS). A short time later NLS made the KayPro line of portable computers. The NLS scope was battery powered and the CRT was about 1 1/2" across diagonally. The whole scope was about 1 1/2" high by 6 or 7" deep and about 5" wide. I don't remember if it was one or two channels and I don't recall the speed and I don't remember what ever happened to it but it was a pretty handy scope.