So that was just filter chokes moving about or load chokes do it too? Lots of loop area and inductance makes fields easy to pick in general. Now if you will be able to create something like this out of just interference you are in for the next Nobel prize.
It was. An inch further away and it would not have shown on the scope. I had both filterchokes some inch and the half from the powertranny and their the last 100 uF C didnt filter that 4-5 mV induced AC.
So, your in for the scope-art championchips now are you? Well lets see if I can match you.
I think I have a short in one of my SSHVs. Made a quick C-split-double R-double C filter to investigate hum. Smoked a 3 W 1k resistor, glowed pretty nicely for some seconds. The broken SSHV shows some 54 ohms on the input. The ther one is not shorted.
Attachments
Just now. Yes there was some smoke from that area in an earlyer test this morning. And tranny wouldnt give me the 300 VDC it usually does, some 265 instead. So I replaced the whole filterpack with chokes and all and plugged in. Fireworks. Ill replace the 2540s and measure.
Use physically small caps in the sub uF. That lessens their inductance an let them work better as decouple. Although it may was just a transient or another mishap that took one only, having the decouple is not hurting anything. Now I don't know if it was a transient that one different decouple sustained better or something random during the experiments. Probing maybe?
No, is silent as a tomb
If a phono does a line pre will. Its the inductances picking most probably. But Stajo now is fully equipped and willing.
Always. I replaced both 2540s on that card and now it shows some 18-19 uF on that input
Do I even dare to test it with voltage?
Always. I replaced both 2540s on that card and now it shows some 18-19 uF on that input
Do I even dare to test it with voltage?
You can test the CCS part separately even with 20V only.