Todays Project - What did you do today?
Rob,

That wee o-silly-scope is pretty  Smiley-signs021 .

I checked the specs on that and not bad for $32. It's certainly adequate for a whole lot of stuff.  Thumbsup

Ed
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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  Big Grin . 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   Slaphead

Rob
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(11-30-2015, 04:58 PM)RobWilson. Wrote: Hi Ed , 
...

Any idea what  duty means ?  info is a bit thin on the ground for this scope   Slaphead

Rob

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.  Big Grin

Ed
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(11-30-2015, 03:06 PM)RobWilson. Wrote: I knocked up a wee oscilloscope and scrolling clock Smile
I enjoyed using the new Hakko FX 888D soldering iron ,it made soldering up the boards easy .
Rob

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)
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(11-30-2015, 03:06 PM)RobWilson. Wrote: I knocked up a wee oscilloscope and scrolling clock  Smile 

Rob

Kewl! Nicely done Rob. Thumbsup

Now why haven't you knocked up a couple of proper enclosures for them yet? Chin

Rotfl Rotfl Rotfl
Willie
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Nice work Rob. Are you going to use it in finishing off your CNC mill?

Big Grin
Hunting American dentists since 2015.
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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]
Free advice is worth exactly what you payed for it.
Greg
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(11-30-2015, 05:08 PM)EdK Wrote:
(11-30-2015, 04:58 PM)RobWilson. Wrote: Hi Ed , 
...

Any idea what  duty means ?  info is a bit thin on the ground for this scope   Slaphead

Rob

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.  Big Grin

Ed

Clear as Ed  Big Grin

All interesting stuff this electronics lark ,lots to learn  Smiley-think005  . 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]

so basically PWM ????   Chin
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(11-30-2015, 05:15 PM)wawoodman Wrote: Looks like fun. I put my first Heathkit together in about 1972.



Hi Mike ,  Smile

I bet your project was a lot more involved and took more skill to build .   Blush


Rob
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(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  Smile 

Rob

Kewl! Nicely done Rob.   Thumbsup

Now why haven't you knocked up a couple of proper enclosures for them yet?   Chin

Rotfl   Rotfl   Rotfl

Rotfl  give a bloke a break Willie ,I need to finish the CNC mill first  Big Grin  , maybe build a 3D printer  to make the case for it Chin



Rob
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