| ??? 02/27/10 23:57 Modified: 02/27/10 23:59 Read: times |
#173631 - It's possibly more convenient nowadays than in 1960. Responding to: ???'s previous message |
Andy Neil said:
I got my existing Tektronix TDS220 on ebay.
Richard Erlacher said:
I'd caution you that a computer implementation of an instrument is seldom as convenient as one with knobs and switches, even if it is computer-controlled internally. I'd probably agree (I haven't tried any of the latest PC-based scopes, so I can't speak from experience of the current state of the art). But the Rigel model shown - like the TDS220 - does look to have a sufficient complement of real knobs for my practical use. I thought that was just an on-screen image. Does the thing have a physical front-panel as shown? Have you considered, at all, purchasing an "experienced-but-fully-functional" instrument of the 1960's generation No, that wouldn't be suitable. I really do need the ability to at least download the screen image to a PC. I have more modern instruments with which I can do that sort of thing, starting with a digital camera, which is useful when preparing calibration instructions or what-not, requiring one to see the settings as well as the display. Those I just have become so accustomed the "feel" of the 465/475 series, that I don't have to look at the instrument often enough to lose my place in the circuit. It saves well over half the time. My more modern 2467B's which I bought for the purpose of seeing those once-in-a-million-sweep events such as a metastabile state occurring often enough to cause trouble, but very hard to catch, is computer controlled, and I still have to look carefully at the 'scope's LED's, knobs, and buttons, as well as the display, to see what I'm doing. Yes, I do remember the days when capturing a "screenshot" from a scope meant using a Polaroid camera - and I do not want to go back to that! Yes, I've done that, and the camera made for that 'scope wasn't cheap! They make adapters for digital cameras, though. I've not tried to buy one, however. Today, I can use an old digital camera on a tripod, then use software to annotate and edit it, and that's very cheap. The HP 'Scope cards capture and retain a display, too. They sample at 2GHz, with a bandwidth of 500 MHz. That gives me four channels, which I find adequate. RE |
| Topic | Author | Date |
| Rigol 'scopes - any views? | 01/01/70 00:00 | |
| Dave Jones seems impressed | 01/01/70 00:00 | |
| Reply | 01/01/70 00:00 | |
| Why was that? | 01/01/70 00:00 | |
| I didnt get time to | 01/01/70 00:00 | |
| Have you considered a used instrument? | 01/01/70 00:00 | |
| Yes | 01/01/70 00:00 | |
| It's possibly more convenient nowadays than in 1960. | 01/01/70 00:00 | |
| Does the thing have a physical front-panel as shown? | 01/01/70 00:00 | |
| see the settings as well as the display (illustrated). | 01/01/70 00:00 | |
oscope | 01/01/70 00:00 |