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| Help Choose a Used Waveform / Function Generator Upgrade |
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| Stray Electron:
--- Quote from: JohnG on June 17, 2022, 01:52:14 pm ---FWIW, I have gone through a slew of various old signal generators, both function generators and pulse generators. HP, Wavetek, --- End quote --- EVERY piece of old Wavetek that I've even gotten in my hands (probably 2 dozen) has been bad! I don't think that there is any service info available for most of it either. You've been warned! |
| HalFoster:
First, it would help to give a little more to go on... what will you be using it for? Frequency range? Do you need the waveforms *other* than a sine wave? Are you wanting it for casual use or for more precision applications? Depending on the answers you may well get by with a toy like the Feeltec or it might take a lab grade instrument - or more than one. To throw out a recommendation without knowing your requirements, it would be, for an used instrument, an HP 3310A, 3310B or on the upper end a HP 3325A. Or, if going with something new, it is very hard to go wrong with Siglent for a attractive price/performance standpoint. Hal |
| HalFoster:
+1 for Stray Electron's recommendation: be very careful when looking at used equipment - some brands are very poor quality or prone to issues. - You are very much doing the right thing by running your questions by others before buying - we all have made mistakes and (most of us, anyway) don't want to see others make them if they don't have to. Hal |
| rdsi:
--- 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. |
| MarkL:
If you prefer something more vintage flavored, take a look at the HP 8116A. It's basically an analog function/pulse generator that is digitally controlled, and can be connected to a GPIB controller if you're into that. Output is up to 50MHz +/-8V into 50R and +/-16V into high impedance. The user interface is simple and should satisfy your "feels good to use" requirement. Look for option 001 which gets you a settable N-burst mode. And I'd strongly recommend not buying one that is "As-is" with the intent to fix it, because they do have unobtanium parts. I have a 8116A for about 20 years and also a Tek FG504. I would stay away from the FG504. My FG504 is currently working, but has spent more time in the repair pile than any other TE with an assortment of silicon failures and mechanical problems. |
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