Tektronix 200 / 300 series

[dtRCasa]

Where there other manufactures of small, portable DC powered scopes like the sony/tek 200 / 300 series, or was it just Tektronix?

[PaulAm]

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

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.

[Martin.M]

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

[harrimansat]

https://archiwum.allegro.pl/oferta/oscyloskop-philips-pm-3010-i7373275041.html

[bd139]

Smallest one I know of:



Took 4x C cells.

[Martin.M]

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

[alextwin007]

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/

[Martin.M]

 

[madao]

don't forget  NLS miniscope.

[alextwin007]

Found a picture of my collection, so I thought I'd share.

[Martin.M]

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

[madao]

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

[alextwin007]

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.

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

[Stray Electron]

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.