Oscilloscope
From Eric
Some explanations about the functioning of a CRT:
- http://www.cfp-radio.com/realisations/rea75/tv2pouces-01.html
- http://speakyssb.blogspot.com/2016/08/5lo38i-crt-test.html (5LO38I tube)
- https://www.electrical4u.com/cathode-ray-oscilloscope-cro/
- https://www.circuitstoday.com/crt-cathode-ray-tube
- https://www.aplustopper.com/cathode-ray-oscilloscope-construction-working/
Some links about driving an oscilloscope cathode ray tube.
- The most popular schematic, from Elextronixandmore, using a Hammond transformer. A kit can be bought at Catahoula Technologies. The schematic and the BOM are here.
- Another solid-state scope from Electronixandmore, without isolation. The voltages are the following:
HV 350V Anode Cap X1/X2/Y1/Y2 280V Deflection plates A2 270V Anode 2 A1 -310V Anode 1 K -665V Cathode G1 -675V Control Grid
Those values are fine for a 3BP1 tube.
- About the 5LO38I tube:
- https://www.webx.dk/oz2cpu/clock-scope/scope.htm
- http://www.jogis-roehrenbude.de/Leserbriefe/Scope-Clock/Scope-Clock.htm
- https://web.jfet.org/vclk/
- http://www.catahoulatech.com/index.php?product=KIT-0001|PCB
- http://www.sgitheach.org.uk/scope2.html
- http://ludens.cl/Electron/scope/scope.html
- https://www.eevblog.com/forum/projects/oscilloscope-under-construction/
- https://www.eevblog.com/forum/projects/2-inch-video-monitor/
The tube:
- 8SJ31 from GuangYi store (Aliexpress).
- datasheet: http://www.ges.cz/sheets/8/8sj31jv2.pdf
Oscilloscope music:
- https://oscilloscopemusic.com/software.php (a software to generate pictures using X-X modulation))
See also:
