+1 for the TDS540.
On Sun, Apr 30, 2017 at 11:54 shadoooo via cctech <cctech@classiccmp.org> wrote: > Hello, > all fine with Rigol or similar oscilloscopes, but there's a very important > technical specification that often is not considered, which really DOES the > difference between a cheap oscilloscope and a powerful one: waveforms per > second. > Suppose you are searching for a rare glitch, or that you are trying to > trace an edge of a signal with infinite persistence. > If the scope is a DSO, it just takes a sampling window, the memory is full > and requires data processing and display, in the meantime the signal is not > analyzed, and you can lose important events. > A DPO can capture the signal continuously, or at least with very short > death time, and the display is updated using a large number of triggered > sampling windows. > Of course this kind requires a far powerful acquisition circuit. > > I really like DPO scopes in place of DSO, for example used Tek TDS540C or > D, they are quite cheap, no electrolytic caps, and can be optionally > expended to increase acquisition memory depth. > Display is small and grey, but you can use a VGA monitor. > > My two cents. > > Andrea > -- Ian Finder (206) 395-MIPS ian.fin...@gmail.com