sshv 2
Hello, Mr. Salas,
Some time ago I built my stage phono which I am very happy, but I have a buzz (photo of the oscilloscope at the end of the phono stage) around 75hz I use the sshv2, which works well for me or that, I adjust both tension and the current, the operating voltage is dl phono stage is 255 volts and the current is adjusted to 35ma. Attached photos of the phomo stage and psu.
Could it be a malfunction of sshv2 that produces such noise?
Hello, Mr. Salas,
Some time ago I built my stage phono which I am very happy, but I have a buzz (photo of the oscilloscope at the end of the phono stage) around 75hz I use the sshv2, which works well for me or that, I adjust both tension and the current, the operating voltage is dl phono stage is 255 volts and the current is adjusted to 35ma. Attached photos of the phomo stage and psu.
Could it be a malfunction of sshv2 that produces such noise?
Attachments
Hello
Was it there before or it recently appeared? Can you also find it when probing the rail? Use AC scope coupling, 1:10 probe setting and short wire ground probe tip accessory for that. It can be intereference or ground loop. Although 75Hz is a weird frequency to be hum loop.
Was it there before or it recently appeared? Can you also find it when probing the rail? Use AC scope coupling, 1:10 probe setting and short wire ground probe tip accessory for that. It can be intereference or ground loop. Although 75Hz is a weird frequency to be hum loop.
sshv 2
Thanks for answering, the noise was already in the first moment that I started the phono stage.
When reviewing the ssvh 2 output with the oscilloscope I can not see anything alarmingly, attached screenshots
Thanks for answering, the noise was already in the first moment that I started the phono stage.
When reviewing the ssvh 2 output with the oscilloscope I can not see anything alarmingly, attached screenshots
Attachments
sshv 2
Thank you Mr. Salas, I will review everything again and take your advice.
I put the oscilloscope back to maximum sensibility and attached screenshot,
For me, it is correct
Still look again on the rails with short ground tip and more sensitivity in AC coupling scope mode. I am on mobile now and I don't see the screen shots in detail. So make sure.
Thank you Mr. Salas, I will review everything again and take your advice.
I put the oscilloscope back to maximum sensibility and attached screenshot,
For me, it is correct
Attachments
- Home
- Amplifiers
- Power Supplies
- Simplistic MosFET HV Shunt Regs