smallest CRT 2 ch scope ? - Page 1
Forum section: electronics / projects

author: oz2cpu
author_rank: Frequent Contributor
timestamp: November 25, 2022, 08:27:51 am
content: wow see this super cute micro sized scopeit is 2 channels, auto shop / alternating,I was so lucky it could be fixedhttps://youtu.be/cFPEoYmJlOcdo you know any smaller ?

author: Roehrenonkel
author_rank: Frequent Contributor
timestamp: November 25, 2022, 02:24:53 pm
content: Hi,Quote from: oz2cpu on November 25, 2022, 08:27:51 amYes, Tektronix SC501 (maybe its just 1 ch.) SC502..504 with even bigger CRT.

author: PA0PBZ
author_rank: Super Contributor
timestamp: November 25, 2022, 02:32:39 pm
content: Cheating allowed?

author: inse
author_rank: Super Contributor
timestamp: November 25, 2022, 04:15:58 pm
content: Tektronix 222/224, not TDS!

author: PaulAm
author_rank: Frequent Contributor
timestamp: November 26, 2022, 12:50:14 am
content: The Sony/Tek 335 is a pretty capable small CRO.

author: coromonadalix
author_rank: Super Contributor
timestamp: November 26, 2022, 02:29:00 am
content: you had a few therehttps://www.eevblog.com/forum/blog/eevblog-628-tektronix-213-vintage-portable-oscilloscope-teardown/

author: Someone
author_rank: Super Contributor
timestamp: November 26, 2022, 05:27:46 am
content: Quote from: PaulAm on November 26, 2022, 12:50:14 am214/314 even have storage CRTs. Or 222/224 miniature DSOs with CRT displays.

author: tautech
author_rank: Super Contributor
timestamp: November 26, 2022, 08:56:40 am
content: Not really tiny but quite cute:https://www.eevblog.com/forum/testgear/aaron-bs-310s-cro-mini-teardowm/Member Bravo expressed interest in the pair I had so he now owns them.

author: CaptDon
author_rank: Super Contributor
timestamp: November 26, 2022, 02:48:00 pm
content: Don't forget the Non Linear Systems MS-15 and MS-215 single and dual channel 'mini-scopes'. I owned one of the MS-15 models. It was nice except for the Gates sealed lead-acid batteries. I didn't get much life from them and their capacity dropped rapidly until useless. James Millen made some versions of small scopes using either the 2AP1 or 2BP1 tubes. There were some specialized military scopes that used 1EP1 crt's and also the crt that looked like a metal 6L6 with a 1" screen on the end, I forget the number, 905? 903?.

author: tunk
author_rank: Super Contributor
timestamp: November 26, 2022, 04:07:03 pm
content: There's also the Brüel & Kjær Type 4714 (106x135x230mm):https://youtu.be/cFPEoYmJlOchttps://www.radiomuseum.org/r/bruelkjae_oscilloscope_4714.htmlWhich looks very similar to the National VP-5602A.

author: tautech
author_rank: Super Contributor
timestamp: November 26, 2022, 04:20:58 pm
content: Now quiet member GK has a few small homemade CRO's of interest:https://www.eevblog.com/forum/projects/oscilloscope-under-construction/https://www.eevblog.com/forum/projects/designed-a-cro-in-spice/And best for last, a 2" CRT video monitor:https://www.eevblog.com/forum/projects/2-inch-video-monitor/

author: oz2cpu
author_rank: Frequent Contributor
timestamp: December 01, 2022, 09:52:32 am
content: my latest tiny crt scopehttps://youtu.be/l8WaflwgxMsbut only 1ch, super cool text generator for DMM mode