Hi Guys,
Wondering if anyone has advice on what could be causing a high pitched sound from an amplifier. A friend mentioned he was getting this high pitched sound which is exactly like another amplifier I have that makes the same high pitched sound.
I uploaded the video and it can be seen with the link below:
Dropbox - VID_20200104_180455541.mp4 - Simplify your life
He mentioned that if he removed the links at the back the problem is coming from the pre section. My amplifier doesnt have those links and is a completely different brand yet I get the same high pitched sound. My amplifier has a complete recap too yet the other has fairly decent old caps.
I have a cheap oscilloscope that I tried to measure the sound and it was telling me it was 50HZ but when I looked online it was not a 50HZ hum. The sound is mostly coming from the tweeter. Any advice would be appreciated. Thanks
Wondering if anyone has advice on what could be causing a high pitched sound from an amplifier. A friend mentioned he was getting this high pitched sound which is exactly like another amplifier I have that makes the same high pitched sound.
I uploaded the video and it can be seen with the link below:
Dropbox - VID_20200104_180455541.mp4 - Simplify your life
He mentioned that if he removed the links at the back the problem is coming from the pre section. My amplifier doesnt have those links and is a completely different brand yet I get the same high pitched sound. My amplifier has a complete recap too yet the other has fairly decent old caps.
I have a cheap oscilloscope that I tried to measure the sound and it was telling me it was 50HZ but when I looked online it was not a 50HZ hum. The sound is mostly coming from the tweeter. Any advice would be appreciated. Thanks