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Todays Project - What did you do today?
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11-30-2015, 04:50 PM
Rob,
That wee o-silly-scope is pretty  .I checked the specs on that and not bad for $32. It's certainly adequate for a whole lot of stuff.  Ed
11-30-2015, 04:58 PM
Hi Ed ,
I think I payed about £15 from banggood , trace is a bit sketchy but it does have a hold function . All in all its worth the few quid I spent on it ,had fun putting it together and that what counts  . its been running for 4 hours now and the magic smoke is still confined lol .Any idea what duty means ? info is a bit thin on the ground for this scope  Rob
11-30-2015, 05:08 PM
(11-30-2015, 04:58 PM)RobWilson. Wrote: Hi Ed , Rob, Duty cycle is the amount of time the signal is active in one cycle. So with a 20mS square wave for instance, if the time it's high is 10mS and the time it's low is also 10mS then it's a 50% duty cycle. If it's high for 15mS and low for 5mS then it's a 75% duty cycle. Clear as mud. Ed 
11-30-2015, 05:15 PM
(11-30-2015, 03:06 PM)RobWilson. Wrote: I knocked up a wee oscilloscope and scrolling clock Looks like fun. I put my first Heathkit together in about 1972.
Mike
SB 10K (1976) Rockwell vertical mill (1967) Rockwell 17" drill press (1946) Me (1949) 
11-30-2015, 05:52 PM
(11-30-2015, 03:06 PM)RobWilson. Wrote: I knocked up a wee oscilloscope and scrolling clock Kewl! Nicely done Rob. Now why haven't you knocked up a couple of proper enclosures for them yet?  
Willie
11-30-2015, 07:56 PM
Nice work Rob. Are you going to use it in finishing off your CNC mill?
Hunting American dentists since 2015.
11-30-2015, 10:19 PM
Started on the new to me bandsaw. Charlie's been stripping the old paint, and today I fabricated a belt guard. The metal on the face was from an old oil tank, so rusted I had to fill the surface with primer and sand it down to hide some of the pitts.
![[Image: IMG_1971.jpg]](https://lh3.googleusercontent.com/-xuxo04bh13Y/Vl0QjEfn4JI/AAAAAAAADeE/HMCKYG_w1R4/s1280-Ic42/IMG_1971.jpg)
Free advice is worth exactly what you payed for it.
Greg
12-01-2015, 11:02 AM
(11-30-2015, 05:08 PM)EdK Wrote:(11-30-2015, 04:58 PM)RobWilson. Wrote: Hi Ed , Clear as Ed All interesting stuff this electronics lark ,lots to learn  . Changed a few settings on the function generator (something else I need to learn how to drive ) to change the duty cycle .![[Image: P1100725_zpsxbkya2ul.jpg]](http://s1066.photobucket.com/user/RobWilson100/media/Electronics%20Projects/P1100725_zpsxbkya2ul.jpg.html) so basically PWM ????
12-01-2015, 11:07 AM
12-01-2015, 11:10 AM
(11-30-2015, 05:52 PM)Highpower Wrote:(11-30-2015, 03:06 PM)RobWilson. Wrote: I knocked up a wee oscilloscope and scrolling clock give a bloke a break Willie ,I need to finish the CNC mill first , maybe build a 3D printer to make the case for it Rob |
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