When I just have to buy a tiny oscilloscope. I mean, given, its cool, and was $40, but still. (yes that's a normal, empty can)
Leader LBO-315 60mhz dual trace, pretty feature rich. Fully functional aside from ALL the screws being loose, which I fixed, (belonged to an army field tech, must have sat in the cab of something diesel a lot). Made in Japan in the late 80s I think. Capable of running on DC 10-20v, AC 85-264v @ 48-440Hz (not a typo), or its side mounted 12volt 1.7Ah nicad pack that it charges itself, and somehow still holds some amount of charge, I'll likely rebuild it. It even came with the original nylon and leather carrying bag(which is vented so you can use it in the bag).
What better way to test it than to run Nintendo sounds through it, its the closest thing to a signal generator that immediately came to mind.
Then I discovered that modern scopes have their very own calibration point!
Nice scope! Forty bucks well spent, have another beer!
Well bought for sure! Everyone around here seems to know what good 'scopes are worth because Craigslist rarely has anything approaching a deal. At least from what I saw for a few weeks that I checked.
I want to get an O scope myself so I can read the diagnostic port on my mercedes. I don't know what it would tell me but a pulse of energy is neat as hell. I think you can measure injection pulse with one of these suckers and god knows what else. I should have been an electrical nerd instead I went for chemistry.
In reply to fujioko:
But I spent the beer money on a scope!
RossD
PowerDork
7/14/14 8:19 a.m.
It tops out at 440hz? On the musical scale, that's only the "A" above middle "C"
EDIT: After looking at your response below, I get it now.
In reply to RossD:
No, its a 60 MHz 2 channel scope, its got a very wideband power supply capable of running on up to 440hz AC power(400Hz is common in aerospace). http://en.wikipedia.org/wiki/Utility_frequency#400_Hz
Insides, every chassis screw was loose.
Some nicer pictures from the PO.
In reply to Appleseed:
You highly underestimate the practical applications of such a tool.
Leader LBO-315 60mhz dual trace, pretty feature rich. Fully functional aside from ALL the screws being loose, which I fixed, (belonged to an army field tech, must have sat in the cab of something diesel a lot). Made in Japan in the late 80s I think. Capable of running on DC 10-20v, AC 85-264v @ 48-440Hz (not a typo), or its side mounted 12volt 1.7Ah nicad pack that it charges itself, and somehow still holds some amount of charge, I'll likely rebuild it. It even came with the original nylon and leather carrying bag(which is vented so you can use it in the bag). 
