[time-nuts] Good scopes under $40 was Thunderbolt, Rb,

Leigh L. Klotz, Jr WA5ZNU Leigh at WA5ZNU.org
Fri May 21 22:19:22 UTC 2010


> Can you really get a useful scope for $25?  What's it like?
>    

It's 30 Mhz dual-trace analog Tek scope, a bit fuzzy looking.  But it 
gets the point across that you don't need a high-end scope to do these 
measurements, just basic skills and thought.

Here's someone who made the hard-drive scope before me:

http://hackedgadgets.com/2006/06/01/making-a-hard-drive-laser-oscilloscope/

Mine has is good up to about 300 Hz.
http://www.youtube.com/user/wa5znu#p/a/u/1/m8D_6AIS7eo

Leigh/WA5ZNU




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