On Tue, 19 May 1998, Mike DeMetz wrote: > > aha! I have taken my DMM back to the shop and demanded they fit the scope > > button back on it :-) > > > > Seriously, I cannot afford a full scope, has anybody got any recommendations > > of a cheap PC based scope system ( I can see VIPS and PICO in a catalogue > > here.... ) > > > Tech America has a handheld LCD scope/meter for $199. Only good up to > 5Mhz(steady signal). ^^^^^^^^^^^^^ And this makes it unsuitable for serial digital troubleshooting unless special signals are generated for testing. A poor man's digital analyzer would do it, but a real scope is more versatile. My advice (been there): Haunt your local ham club or school and find out when the next garden/garage sale is on. Then, pick up a reasonable 'old' scope for $100 or less. You should be able to net a Hameg or whatever 2 x 20 MHz (perhaps valved - although better not) this way. Insist on checking it out on the spot, you should get the scan line on the screen, don't take it otherwise. Peter