Ok, continuing the saga "Help Padu to find a decent oscope":
On the most recent episode, I bought a 100MHz 2-channel Tektronix 465M from
e-Bay. It arrived sound and safe, but when I turned it on, instead of a flat
line trace it showed a curved trace, very similar to a nike logo.
Additionally, there are more than one trace visible at any time (no voltage
or measuring a signal).
I've injected a sinusoidal and it shows the wave, but more than one trace (5
or 6) at the same time, no matter what mode (AC, DC, LF, HF).
Last week I sent it to a local repair shop, it will cost $195 to fix it, I
bought it for $100 (still it is less than $300, probes not included). I may
go ahead and tell the guy to fix it.
On the other hand, he offered another deal. He has a 50MHz Tektronix 5440
with 2 plugins. He says it is not as portable as the 465M, but I don't care
for portability given that it will not take all my workspace real estate. If
I buy it from him, he will take my 465M as a trade in.
So here are the two options that I have:
1-Spend another $190 and have my 465M fixed (100MHz)
2-Spend another $145 and get a 5440 with two plugins (50MHz)
Keep in mind that I will rarely work with more than 40MHz speeds on my
microcontrollers... if that says anything.
Which option should I go with?