Hello and welcome to the forum.
We went to the moon thanks to analog oscilloscopes and suddenly it seems that an analog oscilloscope is no longer of any use, not even for a beginner.
You say what you want to do:
"I'd like to do some audio projects in the future such as pedals and synth modules and also learn to repair stuff."
An analog oscilloscope is fine for what you want to do, maybe better than a DSO because it is easier to use and the component tester is very useful for repair.
But there are pitfalls to avoid:
- only buy an oscilloscope in good working order, never a broken device.
- buy only a simple oscilloscope, without cursor, without readout, and without excessive sophistication.
More sophisticated it is, more risk of failure.
- Give preference to oscilloscopes with component tester, it is very useful in repair.
For the probes, it is mainly wear accessories, it is better to buy new ones.
We find 60 or 100Mhz probes on ebay for a few tens of euros.
The price of analog oscilloscopes is often less than the price of repairing any device and allows you to take the risk of a possible breakdown ... In this case, the device is sold as defective and we buy another one .... the harm is very low.
What are my recommendations?
HAMEG: Made simple and rugged oscilloscopes in the past often with a built-in component tester.
The best choice in my opinion is the HM605 (60Mhz with component tester) but it becomes hard to find in good working order.
- HM 203: highly recommended (all versions)
- HM204: all versions
Avoid HM3XXs and newer HAMEG's, they are not very reliable.
TEKTRONIX: the most famous manufacturer of analog oscilloscopes:
I recommend the 465B (100Mhz) provided it is in good working order.
Also the 2235 although the 22xx series is less robust than the 465. (Mostly problems with power supply.)
Finally, why not mention it despite being rare, the Hewlett Packard HP1740A which is splendid but takes up a lot of space on the table. It must also be in perfect working order.