>I saw your video regarding this old PSU, very impressive!
thanks alot, i had a lot of fun and work out of the making of that video, (if you like teardown videos, see my youtube)
if anyone ever seen this type of zener implementation before ?? please post link ?
I really like to know more about this genius opamp design.
>SSA3021X+
HAHA lucky you.. I got one too, super happy about it
>Yesterday I got an very old idea in mind for the simplest check at least (don‘t lough plz!) I connected the PSU outputs DC-BLOCKED
>with the LF-input of my batterie powered speaker system (avoiding grounding problems) to listen to any noise - nothing!
no one is laughing, this is a perfectly good idea,
I only see one problem : it reveal only noise in the audio range, that type of speaker system can handle,
small pc desk top speakers, are like 100Hz to 10kHz
if you cant hear anything, add more gain ? external opamp ?
actually such noise amp, headphones, could be used to debug alot of things.
but most problems with emc, switchmodes, regulation , stability, is not in the hearable range, either 0-100Hz or over 10kHz..
> I was impressed in your video how good automatic triggering of your SDM3055 runs (the green flashing dot on the top left)
I am not sure i understand what you mean ?
auto trig, is just freerun mode, the meter is not synced to anyting,
I just resently had an SDM3065 for loaner, did not see any problems with it, when my 3055 came back from repair, i had to let it go,
i actually missed it a bit, due to its one more digit resolution in low ohm range, and that is where i play the most at the moment