11 October 2020

Kit Oscilloscope Clock 8SJ31J review - 2

After few days fiddling with the kit I came up with one further tip for future builders: use a "sort-of" socket for the two fuses F1 and F2. They are not resettable, so if they blow up you need to go back to the soldering station.

Obviously it happened to F2 (filament) in my built kit. Now I fit two machined pins and the new fuse will go there. Moreover I noticed that F2, whose value should be 1A, was marked 750 mA, barely the limit for 2BP1 CRT that requires 600 mA according to the datasheet (but probably more at power up on cold filament).