On Jun 1, 12:51 am, wrote:
Hello everyone my Tektronix 2246 oscilloscope just went out on me
tonight. First it started making frequencies noises randomly, then it
took multiple tries to get it started. Now it just makes chirp and
doesn't start all together. I opened it up at looked at the power
supply and it looks fine, no obvious damage. Is there a common problem
i could fix on my own? Can someone recommend a good repair shop in the
Chicago land area.
Thanks
Rich

Could be bad capacitors in the power supply, they can cause audible
noise.