| Products > Test Equipment |
| Help Choose a Used Waveform / Function Generator Upgrade |
| << < (5/7) > >> |
| ozkarah:
Take a look at Siglent SDG2042X. Reasonable price with upgrade/hack option up to 120 MHz. I am very happy with its performance. |
| nctnico:
--- Quote from: rdsi on June 17, 2022, 02:43:42 pm --- --- Quote from: mapleLC on June 17, 2022, 08:48:14 am ---Since I don't know this type of piece that well, I would like to know what everyone considers a really good classic unit. --- End quote --- A great classic is the HP 33120A. These can be had for a couple hundred dallars (US). I have one sitting next to my Siglent SDG6022X but I only ever fire it up for nostalgic reasons. --- End quote --- I can imagine. The HP 33120A and related models are horrible to use. |
| nctnico:
--- Quote from: mapleLC on June 17, 2022, 12:39:56 pm --- --- Quote from: rob77 on June 17, 2022, 12:10:17 pm ---+1 for the FY6900 , it's in a crappy plastic box with lack of gravity in it (it's very lightweight ) , but id does exactly what one could expect from a signal gen. if you looking for a "cool looking" boat anchor then it's not for you of course ;) --- End quote --- I cant wrap my head around it. If I use a unit like that once or twice I never want to touch it again. The tactile feel is so poor, the unit is so light and flimsy, and I know the build quality is crap and has tons of components that are designed to fail. I guess its the same mentality you need to enjoy these superhero movies that are just identical bad movies with different characters. What is funny is how the folks suggesting these crap products are wondering why I'd want an older piece of gear. --- End quote --- 'We' are wondering why you would want an older piece of test gear because 'we' have the experience that older test gear is severely outdated, has limited features, is prone to failures and more often than not loud & heavy. There really is no upside to buying an older general purpose function generator. Your perceived 'quality' just isn't there. It is like wanting a model T-Ford instead of a modern day car made in Korea. 8) I have owned my fair share of old general purpose function generators (*) and I would have replaced them in a heartbeat if units like the Uni-t I mentioned earlier where around at that time. To me wanting an older unit makes zero sense. :-// * and other old test equipment as well |
| bdunham7:
You've written 10 millihertz in your post--do you actually use frequencies that low and lower? Or did you mean 10MHz (megahertz)? The problem with what you are asking for is that if you want stable low-frequency signals, the way to get them is with an Arbitrary Waveform Generator (AWG) using Direct Digital Synthesis (DDS) and a decent TXCO clock. This is a more modern design and while there are older model AWGs available from Tek and HP, they are typically more limited in performance and still not very cheap for what they are. You can just search eBay for "Tektronix AWG" and "HP AWG" to see many examples. Any earlier analog generators are going to be crap by comparison--even the aforementioned HP 8116A--when it comes to frequency accuracy and stability. |
| mapleLC:
--- Quote from: bdunham7 on June 17, 2022, 05:13:50 pm ---You've written 10 millihertz in your post--do you actually use frequencies that low and lower? Or did you mean 10MHz (megahertz)? The problem with what you are asking for is that if you want stable low-frequency signals, the way to get them is with an Arbitrary Waveform Generator (AWG) using Direct Digital Synthesis (DDS) and a decent TXCO clock. This is a more modern design and while there are older model AWGs available from Tek and HP, they are typically more limited in performance and still not very cheap for what they are. You can just search eBay for "Tektronix AWG" and "HP AWG" to see many examples. Any earlier analog generators are going to be crap by comparison--even the aforementioned HP 8116A--when it comes to frequency accuracy and stability. --- End quote --- That was a typo. I think I want the Rohde & Schwarz ADS dual arbitrary waveform generator. It doesn't have the higher frequency ability, but I like the build quality. What do you think as a mix of more modern design and build quality? file:///C:/Users/Owner/Downloads/ADS_brochure_english.pdf |
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