I've been using the style of scope that you=20 mention that you dislike and would like to=20 suggest that you spend some time playing such a=20 scope. You may find, as I did, that it is very=20 easy to get used to the single set of vertical controls. I have several digital scopes that have such an=20 arrangement and have not found it to be limiting=20 in use. It soon becomes second nature to select=20 the channel you wish to modify before twisting=20 the knobs and pushing the buttons. FWIW: all of my analog scopes have the=20 arrangement that you desire: each channel has its=20 own full set of controls. But I have only one=20 digital scope that is similar, as compared to the=20 several other digital scopes that have a single=20 set of vertical controls for all of the channels. I do have one of the inexpensive Rigol 2-channel=20 60MHz digital scopes that gets significant=20 use. I bought that particular model because=20 eevblog has a group of threads describing how to=20 upgrade the scope to 100MHz bandwidth - but=20 haven't yet done the (simple) procedure simply=20 because I haven't needed the bandwidth. Also FWIW - I find that I rarely need more than 2=20 channels for the vast majority of my design and=20 troubleshooting tasks. If I do need more than 2=20 channels, it's usually a digital project and I=20 use a logic analyzer instead of a scope. That's=20 for dealing with timing issues, of course. You=20 still need the scope to deal with waveforms. My fastest scopes are Tektronix 2465B and 2467B=20 4-channel 400MHz analog scopes. I don't believe=20 that I've *ever* used more than 2 channels at any one time on those scopes. My other 4-channel scope is a Welec 200MHz=20 unit. This is a very inexpensive 4-channel=20 digital scope that ships with absolutely awful=20 firmware. In addition, my measurements show that=20 the vertical channels are *NOT* flat over the=20 100MHz - 200MHz range. However, there is very=20 good 3rd-party firmware available for free and I=20 rarely need to deal with digital signals faster=20 than several 10s of MHz. So: it works for=20 me. BTW - the Welec scope *does* have individual=20 vertical sensitivity controls for each of its' 4 channels. The Welec scopes are available on eBay. I don't=20 have a model number handy but can go down and look at the unit if you need. dwayne At 04:12 PM 8/23/2014, peter green wrote: >I've used scopes belonging to other people (mostly the university) >before and i'm thinking of buying one for myself but i'm getting a bit >of sticker shock at the prices. > >Must haves > >1: at least 60MHz bandwith (the rule of thumb i've seen is that you want >to catch the 5th harmonic of a signal for digital work, so this fits >with the IO speed of a USB pic18). >2: at least four channels, two is just too limiting in my experiance >3: digital storage with single sequence mode. >4: individual knobs for the scale and position of the channels. I've >tried scopes with just one set of knobs and find them horriblly >confusing to work with. >5: color display > >Nice to haves: >1: More bandwidth (no matter how much you have you always want more) >2: signal generator, I don't own a seperate one so having the ability to >apply stimulus would be nice. Having said that it's not something I >would pay massively extra for. I can always pick up a seperate generator >if/when I need one. >3: PC interface > >Budget: as little as possible, limit =A31000 all-in (e.g. including VAT, >delivery, probes etc) > >In terms of budget scope vendors I've heard good things about rigol and >bad things about owon, Any other makes people reccomend for/against. > >I took a look at rigol but it seems all their budget scopes have a >single set of "vertical" knobs which is a configuraion I hate. >I took a look at the tek TBS line but i'm a bit wary of having no magin >over the bandwidth i've calculated I require and the 100MHz model seems >above what i'm willing to pay. >I took a look at keysight technologies (formerly agilent) but their >products seemed enen more expensive than teks >Hameg seem to be fans of the single set of vertical controls approach > >Wondering about the possibility of buying used, I had a quick look on >ebay but didn't find much, anyone have any tips on where to look and >what to search for? > >-- >http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive >View/change your membership options at >http://mailman.mit.edu/mailman/listinfo/piclist --=20 Dwayne Reid Trinity Electronics Systems Ltd Edmonton, AB, CANADA (780) 489-3199 voice (780) 487-6397 fax www.trinity-electronics.com Custom Electronics Design and Manufacturing --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .