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16  Community / Bar Sport / Re: Are microcontrollers considered to be kiddies toys in real world? on: April 30, 2014, 01:06:59 am
My DX4-100 is/was the "ducks guts"!

It has the VLB MF card from hell, SCSI, 2x serial, 2x parallel, 2x joystick, IDE, floppy.

Just to be totally elitist, it's a pure SCSI system, dual boot DR-DOS and Debian!
17  Community / Exhibition / Gallery / Re: Conway's Game Of Life with TVout 128 x 96 pixels on: April 24, 2014, 06:16:48 am
This works REALLY well!

Looks great on my 37" Sony BRAVIA!!!
18  Community / Bar Sport / Re: Are microcontrollers considered to be kiddies toys in real world? on: April 24, 2014, 12:56:51 am
Apple did a deal with all the schools in South Australia that had Apple II euro plus machines, the ones that were all TTL, they replaced them with the newer version that had 128k and a board that only had a few 40 pin DIPS.
I took home about 40 complete Apple II's.
They all boot fine, finding 5-1/4" floppies these days is a bit hard, my main worry is drives, in particular the head amp chip.

TTL, 7400 series and VLSI chips seem to last forever, my Synertek SYM-1 is still going strong after 35 years!
19  Community / Bar Sport / Re: Are microcontrollers considered to be kiddies toys in real world? on: April 24, 2014, 12:27:08 am
I would rather nail my penis to a burning building or be seen driving a ford than run windoze 8!

no fear on the dead Apple, I have enough bits to keep a few dozen running for years to come!
20  Community / Bar Sport / Re: Are microcontrollers considered to be kiddies toys in real world? on: April 23, 2014, 09:41:17 pm
Remember most folks computing power is inversely proportional to their skills

Which is why I get little dweebs giving me grief about still having and using a DX4-100, Macintosh Plus and an Apple II
21  Community / Bar Sport / Re: Are microcontrollers considered to be kiddies toys in real world? on: April 20, 2014, 03:37:19 am
my first thought was, "How would I build a USB Mouse without a microcontroller"?

I've built UART's in 74x and 4000 series, but a more complex circuit is a nightmare!

This is coming from someone that REALLY likes building big, complex things out of 7400 chips!

When you consider that "Pong" was a single board, about 16"(?) square, PACKED with 7400 TTL, that drew around 5A!!
I can now haz "Pong" with a single 324, a couple of resistors, 2 pots and a speaker.

22  Community / Exhibition / Gallery / Re: Text Printer (stepper, servos, and a marker) on: March 08, 2014, 01:19:31 am
Very Cool!
Reminds me of a printer I have somewhere that uses tiny ball point pens
23  Community / Bar Sport / Re: Whiplash from a topic search ! on: February 26, 2014, 02:34:17 am
Grampa used to get asked to go all over the Mount Lofty Ranges.

He was always right on the money.

I was always sceptical, even after I dug a shallow well (3 metres) in a spot he had said was good.
24  Community / Bar Sport / Re: Whiplash from a topic search ! on: February 25, 2014, 10:58:34 pm
my great grand father used to "dowse" for water with a pendulum, he was scary accurate!

I saw him dowse with coat hangers as well.

Before you all cry "rubbish", the proof was in the well!
25  Community / Bar Sport / Re: For the seasoned contributors on: February 01, 2014, 09:02:40 pm
just to throw another spanner in the works...

isn't tab diet cola?

 ;-)
26  Community / Bar Sport / Re: For the seasoned contributors on: February 01, 2014, 11:47:03 am
every now and then I get strange looks when I say "Hit return"

"What's return?"

me, "You know, carriage return."

"Where's that on the keyboard?"

me, "FFS! It's the big key on the right, near the numeric keypad!!!"

"You mean enter"

27  Community / Bar Sport / Re: What do you call a citizen of the United Kingdom? on: January 03, 2014, 09:54:44 pm
Australians are inherintly racist to the English.

In the 12 years I've lived here (Australia) I've seen more casual rasists than anywhere else.... just from every day language which they think is fine...

Pom is racist, refering to color of skin .



Rubbish!
It's an affectionate term!

Besides they need a little "push", now that they can't bat, bowl or field!!

btw, I'm WAY paler than the average ten dollar pom!
28  Community / Exhibition / Gallery / Re: Heavily Modified Power Wheels on: January 03, 2014, 02:53:13 pm
That is so cool!

Parenting, you're doing it right!!
29  Community / Bar Sport / Re: What do you call a citizen of the United Kingdom? on: January 03, 2014, 02:49:06 pm
Redcoats.. talk about the opposite of camouflage, especially with the big white X screaming "Shoot me!"

They stopped wearing red coats after the first Boer war!
Made them really easy to hit from 1000 yards away!

Here in Australia we call them "poms" or "whinging poms"

Find the video of the folks who just got rescued in Antarctica!
The difference between the Aussies and Poms is pretty funny and speaks for itself!
30  Using Arduino / Audio / Re: TL082 preamp: help please! on: October 20, 2013, 10:44:17 pm
I started of with a QUAD opamp, a TL084, then went to two dual opamps, TLO82's.

At 40Khz I was getting WAY too much cross talk between channels.

For the record it's not trivial, but it really isn't hard.

The main issues here is use multiple stages of gain instead of a single high gain stage.

When using a DUAL SUPPLY opamp you need to remember to supply biasing, thats what I've done with the voltage dividers on the positive input.

Don't try and build a non-inverting amp, go for an inverting amp, you should be able to adjust your biasing with a decent meter.

One thing I can sugest is get an old analog CRO, don't spend hundreds on a DSO, you will learn a lot just messing around with opamps and a decent 10-20Mhz CRO.
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