Tektronix 200 / 300 series - Page 1
Forum section: electronics / testgear

author: dtRCasa
author_rank: Newbie
timestamp: January 21, 2015, 08:05:17 pm
content: Where there other manufactures of small, portable DC powered scopes like the sony/tek 200 / 300 series, or was it just Tektronix?

author: PaulAm
author_rank: Frequent Contributor
timestamp: January 21, 2015, 08:37:20 pm
content: 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.jpgThere'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.

author: Martin.M
author_rank: Frequent Contributor
timestamp: January 21, 2015, 09:55:22 pm
content: opsI 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 know305 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 apparatusNLS, 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.greetingsMartin

author: harrimansat
author_rank: Regular Contributor
timestamp: January 16, 2020, 08:48:01 am
content: https://archiwum.allegro.pl/oferta/oscyloskop-philips-pm-3010-i7373275041.html

author: bd139
author_rank: Super Contributor
timestamp: January 16, 2020, 09:26:36 am
content: Smallest one I know of:Took 4x C cells.

author: Martin.M
author_rank: Frequent Contributor
timestamp: January 16, 2020, 11:55:09 am
content: 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 thatBut the little apparatus can only display NF bec. the CRT have a magnetic deflection.seen in the german elektronikforum

author: alextwin007
author_rank: Contributor
timestamp: January 16, 2020, 07:04:27 pm
content: 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/

author: madao
author_rank: Frequent Contributor
timestamp: January 16, 2020, 07:53:17 pm
content: don't forget NLS miniscope.

author: alextwin007
author_rank: Contributor
timestamp: January 16, 2020, 08:28:45 pm
content: Found a picture of my collection, so I thought I'd share.

author: Martin.M
author_rank: Frequent Contributor
timestamp: January 17, 2020, 05:09:13 pm
content: 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 15Martin

author: madao
author_rank: Frequent Contributor
timestamp: January 17, 2020, 05:15:42 pm
content: Ah! East germany (GDR) oscilloscope is very cute.. but it doesn't run at DC Power.RFT Picoskophttps://www.ebay.de/itm/DDR-Picoskop/174153530855?hash=item288c5bfde7:g:qdgAAOSwiu5d7P6R

author: alextwin007
author_rank: Contributor
timestamp: January 17, 2020, 06:23:33 pm
content: 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.Quote from: Martin.M on January 17, 2020, 05:09:13 pm

author: Stray Electron
author_rank: Super Contributor
timestamp: January 17, 2020, 06:36:15 pm
content: Quote from: dtRCasa on January 21, 2015, 08:05:17 pmI 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.