On 02/02/2017 23:49, "Jim Brain" <br...@jbrain.com> wrote: > On 2/2/2017 5:21 PM, Chris Hanson wrote: >> On Feb 2, 2017, at 10:43 AM, Fritz Mueller <fri...@fritzm.org> wrote: >>> I bought a used 1662 off eBay for cheap, and it has been indispensable for >>> the work I've been doing on a PDP-11. I think the external clock is often a >>> pretty critical feature in being able to sensibly interpret traces. >>> Sophisticated triggering is also very useful for catching a suspected >>> misbehaving chip in the act. >>> >>> I had considered some of the more modern USB options at the time because it >>> seemed they would be convenient, but in the end I opted for a used >>> old-school tool because it had the features I needed at less actual cost. I >>> have not regretted the decision -- super useful tool! >> My HP 1660CS with Ethernet has ensured I¹m not even remotely interested in >> one of the USB options, between having 136 channels and way higher bandwidth. >> >> Even one of the models without Ethernet would be worthwhile since they¹re >> straightforward to interface with via serial or GPIB. >> >> -- Chris >> > > Hmm, I'm not sure I'd say that. I have a 1650, but the memory depth is > not enough to quickly grab issues. A Logic or Logic 16 can dump a ton > of data into the PC, where it is easy to look at.
My chinese clone is of a Logic 16, I couldn't afford a genuine one since they're ukp500 at least. Obviously caveat emptor, but that's out of my league as a hobbyist. Currently looking at HP1670G's in the US since they're reasonable assuming the shipping and import charges are as quoted. Also a fellow collector is loaning me a zeroplus 16 channel to try so that's another avenue to explore, and there's the DSLogic Pro too which was supposed to be open hardware/open source but development on that one stalled in 2015 and the current lot on e*ay seem to be clones too. -- Adrian/Witchy Binary Dinosaurs creator/curator Www.binarydinosaurs.co.uk - the UK's biggest private home computer collection?