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02-28-2014, 06:37 PM
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Join Date: Aug 2005
Location: Dallas/Ft Worth, TX
Posts: 5,687
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Rigol gets pretty good reviews for a low priced digital scope. I'm still partial to the old analog scopes myself, I got an old Tek 475 I'd give you if you want to pick it up (weighs a ton).
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Walt Aronow, DFW, TX (52F)
EXP Aircraft Services LLC
Specializing in RV Condition Inspections, Maintenance, Avionics Upgrades
Dynamic Prop Balancing, Pitot-Static Altmeter/Transponder Certification
FAA Certified Repair Station, AP/IA/FCC GROL, EAA Technical Counselor
Authorized Garmin G3X Dealer/Installer
RV7A built 2004, 1700+ hrs, New Titan IO-370, Bendix Mags
Website: ExpAircraft.com, Email: walt@expaircraft.com, Cell: 972-746-5154
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02-28-2014, 07:25 PM
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Join Date: Jul 2005
Location: Bolingbrook, Illiniois
Posts: 254
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Check Ebay
I bought a Tektronix 485 for $125 that came with probes and just came out of the calibration shop! Yes its an old box but having a fast time base with good sync lets you look at really fast signals too. More than just a fuel sender which is probably 30Khz max. You can find newer units there too.
Have fun,
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Paul
N694BP reserved
RV-6A Very Slow Build!
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02-28-2014, 07:44 PM
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Join Date: Nov 2005
Location: Asheville, NC
Posts: 2,692
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I got my shop O-scope from e-bay. 100Mhz "portable" benchtop Tektronix 2337 with probes for around 100 bucks.
Whatever you get, I would highly recommend a 2 channel device. I have learned that more times then not, you want to know what is happening in two different spots at the same time....such as... why won't this output work if the input is triggering X. Sometimes the input is ****.
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Bill Pendergrass
ME/AE '82
RV-7A: Flying since April 15, 2012. 850 hrs
YIO-360-M1B, mags, CS, GRT EX and WS H1s & A/P, Navworx
Unpainted, polished....kinda'... Eyeballin' vinyl really hard.
Yeah. The boss got a Silhouette Cameo 4 Xmas 2019.
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02-28-2014, 08:35 PM
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Join Date: Mar 2008
Location: Seattle
Posts: 1,412
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Galin;
Love the Tektronix 515A, I have a 516! When it comes to construction, these things are the most awsome! This kind of fabrication with silver tip ceramic combs & point to point wiring is never going to be seen again.
I'm no expert, but playing with an 'O'scope is just plain fun. I've used a Flukemeter scope, so handy! I love the big old ones, but they stay at home on the bench. The hand held scope fits in a tool box. what it lacks in resolution and features, it makes up in handyness & gets into the hard to reach spots.
Now you've got me thinking to use one to measure that whine in the headset and place a filter capacitor.
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Scott Emery
http://gallery.eaa326.org/v/members/semery/
EAA 668340, chapter 326 & IAC chapter 67
RV-8 N89SE first flight 12/26/2013
Yak55M, and the wife has an RV-4
There is nothing-absolute nothing-half so much worth doing as simply messing around with Aeroplanes
(with apologies to Ratty)
2019
Last edited by SHIPCHIEF : 02-28-2014 at 08:38 PM.
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02-28-2014, 10:39 PM
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Join Date: Jan 2005
Location: Victoria, Canada
Posts: 2,251
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I have a Hantek DSO and a 4-channel 400 MHz Tek for the lab.
The Hantek was about $400 and i've used it in flight to capture ignition pulses. I've also used it on my office desk for debugging microcontroller circuits. It has a built in dvm as well.
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===========
V e r n. ====
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RV-9A complete
Harmon Rocket complete
S-21 wings complete
Victoria, BC (Summer)
Chandler, Az (Winter)
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03-01-2014, 05:53 AM
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Join Date: Oct 2005
Location: 08A
Posts: 9,500
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An old 15Mhz BK, in use last weekend. It arrived at a friend's junkyard as scrap about 1990.

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Dan Horton
RV-8 SS
Barrett IO-390
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03-01-2014, 08:42 AM
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Join Date: Aug 2009
Location: Redding,Ca
Posts: 633
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Aerolectric thread
Bob K suggested this on a thread a few weeks ago, I have two coming now so I can't report on it, but Bob was impressed.
http://tinyurl.com/m68rbdl
Tim
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03-01-2014, 10:41 AM
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Join Date: Jan 2005
Location: San Mateo, CA
Posts: 1,419
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I have one of these Owon scopes and they are _great_ (and cheap for their features - I have a SDS7102). Almost as nice as my Agilent scope at work: http://www.saelig.com/category/MFR00...FYqFfgoda3oAMA
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03-01-2014, 03:29 PM
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Join Date: Sep 2007
Location: Central IL
Posts: 5,516
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Quote:
Originally Posted by DanH
An old 15Mhz BK, in use last weekend. It arrived at a friend's junkyard as scrap about 1990.

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Nice picture, Dan, didn't I see that on ebay today? I recognize the waveform.

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Bill
RV-7
Lord Kelvin:
“I often say that when you can measure what you are speaking about,
and express it in numbers, you know something about it; but when you
cannot measure it, when you cannot express it in numbers, your knowledge
is of a meager and unsatisfactory kind.”
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03-01-2014, 08:25 PM
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Join Date: May 2005
Location: La Luz, NM
Posts: 42
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You can download a program called Visual Analyzer that will act as an oscilloscope on a laptop. It uses the audio input for the scope input. Displays both frequency and time domain.
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Ralph Ketter
La Luz, NM
RV-6 Flying
Last edited by Ralph Ketter : 03-01-2014 at 09:22 PM.
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