| Products > Test Equipment |
| Getting a scope again after decade. Fill gaps im my research of the $300 range? |
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| SureSh0t:
--- Quote from: wasedadoc on May 08, 2023, 07:28:59 pm --- --- Quote from: SureSh0t on May 08, 2023, 03:05:06 pm ---Very sad to be here having had a Tek 7904 loaded with plugins about a decade ago before my dad forced me to sell it to pay rent/make room. --- End quote --- You should have sold your dad and kept the scope. :) --- End quote --- I wish dude. :P |
| Fungus:
--- Quote from: SureSh0t on May 08, 2023, 03:05:06 pm ---I know nothing about the latest Chinese products so maybe y'all can fill me in on what's good? So I just want to be able to work with most solid state outside RF. I'm pretty much a DMM+scope+generator+supply guy. 400-500Mhz bandwidth is enough for me, I like having 1Gs/s and 2mV/div or better sensitivity for those finicky components and finding noise without spending on an analyzer. Let me know what else I should look for, especially Hantek/Sigilent/Rigol as I only know some decent DMM and generators by them. --- End quote --- Chinese DSOs are good but you won't get 500MHz bandwidth for $300. Do you need it for audio work though? Siglent 1202X-E might be the best match for you as it has good sensitivity and a decent FFT. FFTs can reveal things that are hard to see with plain "low noise". It's slightly outside your budget though. Rigols are cheaper than Siglents but their FFTs are more limited and sensitivity is only average. Not the best brand for "audio" guys. Don't get a Hantek. One to consider that's inside your budget is the GW-Instek GDS-1102B. It's only 100Mhz but it does well on the other things. https://www.tequipment.net/Instek/GDS-1102B/Digital-Oscilloscopes/ |
| jonpaul:
We bought old analog scopes at Ham Fleas and street sales For basic audio and digital work a 10..20 MHz 2 ch is fine. We paid EU 5 for a Hameg (Germany/France) HM103 single ch 10 MHz and EU 25 for a Hameg HM203 two channel 20 MHz. Both worked fine, still in use. The TEK are the best old classics, but 1970s..1990s like 485, 465, 475 will have weak CRTs and HV (mult/transformers) and can be hard to service. Best of the epoch was 465B, 475B. The 2465/7 are the last CRT scopes from TEK, see the very long 2465 teardown thred here and tekscopes, tekscopes2 on Groups .io. Have fun, Jon |
| SureSh0t:
--- Quote from: bdunham7 on May 08, 2023, 10:05:15 pm --- --- Quote from: SureSh0t on May 08, 2023, 07:16:39 pm ---Right now I just have a stack of discrete audio to repair. --- End quote --- Then why the 500MHz BW requirement? Approximately where are you? If you are going to shop boat anchors, your location matters a lot. If you want a CRO, something like a Tek 2235A or 2445/A/B would typically be good. The Tek 485 is getting really old and the TDS500 and TDS400 series are pretty undesirable IMO. The condition of a specific unit is probably more important than the exact model, so look for a 'nice' one of whatever mode. If you want to join the modern era for a few bucks more, I find the Siglent SDS1104X-E adequate and quite handy for audio amplifer and RF work. --- End quote --- I live within the Rust Belt in a state with a lot of universities so there's plenty of equipment floating around. Most of what I look for can be picked up locally. I don't mind doing some maintenance. I like fixing things, especially when they would have been dumped or sat unused. The original 400s for example, while they're so old, they're so well documented I'd be surprised if I couldn't fix one. Call me a masochist maybe but I enjoy it. --- Quote ---Then why the 500MHz BW requirement? --- End quote --- I eventually would like to work on more advanced equipment. I don't need an SA but it would be cool to fix one. Or other scopes, meters etc. I admit I just like boat anchors. ;D I started out on a 500 series and the 7904 and I loved those things. --- Quote from: Wallace Gasiewicz on May 09, 2023, 12:08:34 am ---I bought an Agilent 54810 converted to 54820 from some one for $ 400This is 500 MHz scope. With probes and keyboard and mouse.And with the HD converted to SSD, apparently the HD is a weak point. Maybe consider that model. --- End quote --- Sounds like a crazy deal. No idea how I'll find that on my own. ;D |
| bdunham7:
--- Quote from: SureSh0t on May 09, 2023, 08:10:45 am ---I admit I just like boat anchors. --- End quote --- OK then, there it is... https://www.ebay.com/itm/134427523380 |
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