Any tips for a good used/starter o-scope

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pfarber

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I'm going to be doing some electronics work on my plane and think a good o-scope would be helpful.

I used one in the Navy when repairing MDFs but those where $20k units that I have no need for.

Any tips/specs for a decent used o-scope for electronics (Arduino/megasquirt) work? Under $150-ish used preferred.
 

TFF

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Ebay. Really good deals on used ones that have huge capabilities. If I need one, I borrow one from a friend who did that. Mine is from an uncle and was made in the 50s. Only good for Outer Limits title rolls.
 

Pops

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I love my Tektronix 475-A Dual Trace, with a built in Digital Multimeter. Government surplus, I would hate to pay what the gov paid for it.
My first one was a kit I built back in the 60's.
This is the one I have. Huge amount of probes, etc, and manuals came with it.

 
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GeeZee

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Ahhh, many hours behind a techtronics 465B. Nice solid scopes.
For something in the $100 range check out “Picoscope”. You will need to use your laptop for a screen.
 

sming

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The best bang for the buck was the Rigol DS1052 a 50Mhz that could be flashed with the 100Mhz firmware.
Don't know what they go for used...
 

Dana

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There are some dirt cheap (<$100) digital scopes out there now.
 

Bill-Higdon

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My go to scopes are Tek Sc502, Rigol SA1052 that the SN was "Bit Twiddled" to make it go to 100Mhz, the firmware is actually downgraded to allow this., Tek 545, and a Tek 7613. Best bet is to watch Craigslist also check out TekScopes groups.io Group for advice on which to avoid.
 

pfarber

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Sadly, CL has let me down again.

I'm pretty much set on Hantek HT6022BE20 2 channel 20Mhz

I really only need this for Megasquirt tuning so for the cost I think its the best option.
 

FinnFlyer

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Bell, FL
Rigol 1054 is a $300+ 4 channel digital scope.

Having been in and out of electronics for 50 years, I was stunned to learn about the capabilities of the units now available. I would imagine paying $10K or more for the capabilities of this unit 20-30 years ago. It will even decode serial streams of data on RS232, SPI and I2C buses!

But for general troubleshooting on a plane it's probably way much more than you need compared for what you can get for $100 or less.

Finn
P.S. Cost of probes are a significant cost. When comparing prices, include probes.
 

12notes

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I know a couple of people that use one of these for field diagnosis, small and portable for use in a cowling, behind an instrument panel, etc. Great if you're trying to adjust a pot while on your back, feet in the air, with your head on a rudder pedal:

If you're looking for a logic analyzer, I was absolutely stunned by how well the $6 4-channel USB logic analyzers from eBay work. I was really not expecting them to work at all, or be flaky, but I now have 3 of them (home, work, hackerspace). It uses the free Salae software.
 

pfarber

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Evidently Yahoo mail is seriously behind, I got email from the CL o-scope they sent Monday, today. Hopefully I can get that one, as its pretty good for the price. If not I'll stick with the $60 USB 2 channel o-scope to start.

$300 is not realistic for a starter, def don't need 4 channels, 2 at the most. I'm just getting my toes back in the pool and don't need hundreds tied up in gear.
 

Derswede

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Find the next "hamfest" in your area. Bought a two channel Hitachi with 8 probe packs in perfect order for $50 at one. Digital storage scope, works great. Guy was getting out of R & D and had too much equipment. Found two older but functional Aviation GPSs for $65 for the pair as well.

Derswede
 
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