AudioIngenia
Well-known member
- Joined
- Feb 22, 2017
- Messages
- 68
Here is a Studer power supply.
There is a background whistle on all console buses, tuned to 6.8 kHz.
I have tested with the laboratory PSU and the sound is clean.
The problem seems to come from the PSU, but I do not find the oscillation.
I have replaced all the condesadores, the two integrated circuits and checked the rest of the components.
Any suggestions?
https://ibb.co/gO7UuU
There is a background whistle on all console buses, tuned to 6.8 kHz.
I have tested with the laboratory PSU and the sound is clean.
The problem seems to come from the PSU, but I do not find the oscillation.
I have replaced all the condesadores, the two integrated circuits and checked the rest of the components.
Any suggestions?
https://ibb.co/gO7UuU