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>>> But then I only worked in electronics for 25 years so what do I know ;-)
>>
>> Heh, where to buy capacitors cheap, I imagine. ;-)
>
> Buy? ROTFL
Let me guess... REAL engineers MAKE capacitors out of foil and wrapping
paper? :-P
--
http://blog.orphi.me.uk/
http://www.zazzle.com/MathematicalOrchid*
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On 23/05/2010 3:29 PM, Orchid XP v8 wrote:
>
> With the thickness of wire I'm using, 6 mm would be several times the
> total diammeter of the wire. ;-)
>
So, you can always trim it.
You might be better using solid core wire if it is that thin.
These sort of things are learned by experience and listening to the old
men round the camp fire
.
.
>> To tin stranded wire twist the strands so that none are sticking out.
>
> Oddly, this is significantly harder than you'd think...
>
I know, strip and tin one end first then strip the other end. That stops
the strands getting mangled.
>
> The 30-year-old solder I found seems to be quite "bubbly", which makes
> it difficult to do this. It also doesn't seem to want to melt very
> evenly, resulting on lots of blobs, or only one side of the wire tinned.
>
Tin the end first then when the strands can't separate do the length.
Use a dry iron to stroke the blobs off.
BTW modern solder has better flux.
> Now I remember why I wanted to buy wire ready-cut. ;-)
>
LOL
> Still, I have just spent about an hour sitting on my driveway with a
> workmate, several bunches of wire and a soldering iron. People probably
> think I'm weird now... Everybody's out mowing the lawn, riding bicycles,
> having a BBQ or sunbathing, and some sad tosser over at number 11 is
> sitting with a bunch of wires and tools.
Good job they can't see you with PovRay ;-)
--
Best Regards,
Stephen
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On 23/05/2010 3:42 PM, Orchid XP v8 wrote:
>>>> But then I only worked in electronics for 25 years so what do I know
>>>> ;-)
>>>
>>> Heh, where to buy capacitors cheap, I imagine. ;-)
>>
>> Buy? ROTFL
>
> Let me guess... REAL engineers MAKE capacitors out of foil and wrapping
> paper? :-P
>
LOL, They get them from work ;-)
--
Best Regards,
Stephen
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>> Let me guess... REAL engineers MAKE capacitors out of foil and wrapping
>> paper? :-P
>
> LOL, They get them from work ;-)
There are people who get paid money to do stuff involving capacitors? o_O
--
http://blog.orphi.me.uk/
http://www.zazzle.com/MathematicalOrchid*
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On 23/05/2010 4:10 PM, Orchid XP v8 wrote:
>>> Let me guess... REAL engineers MAKE capacitors out of foil and wrapping
>>> paper? :-P
>>
>> LOL, They get them from work ;-)
>
> There are people who get paid money to do stuff involving capacitors? o_O
>
:-D
--
Best Regards,
Stephen
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clipka wrote:
> Am 23.05.2010 12:41, schrieb Orchid XP v8:
>
>> I took a trip to Maplin and somehow spent £25 - which is impressi
ve,
>> given that a 74HC00 is a mere £0.79 (for example).
>
> No, actually it's not - once you get used to this effect :-P
Indeed, one of my own big insights was "Wow, I can use the computer for
another project, if I write *software*!" ;-)
> Pre-cut wires?
And I would think if you're getting pre-cut breadboard wires, you *want*
them to be stiff.
--
Darren New, San Diego CA, USA (PST)
Ada - the programming language trying to avoid
you literally shooting yourself in the foot.
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>> Pre-cut wires?
>
> And I would think if you're getting pre-cut breadboard wires, you *want*
> them to be stiff.
I have now cut some flexible wire, and it works quite well. (In
particular, it can go around corners...)
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Hmm, this isn't going to work at all, is it?
Post a reply to this message
Attachments:
Download 'logic1.png' (7 KB)
Preview of image 'logic1.png'
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PS. MS Word is utterly *horrible* at drawing circuit diagrams... (But I
guess you probably knew that already.)
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On 5/23/2010 9:24 AM, Orchid XP v8 wrote:
>> Why not?
>
> Because when it doesn't work, I will probably end up killing myself, for
> starters... A power supply is far too complicated for me to get right.
>
A power supply is a rather simple device: A transformer that steps down
the 240VAC to (for example) 12VAC, a bridge rectifier to convert the AC
source into DC then a couple regulators to get (perhaps) 5 and 12 volts.
Personally, though I'm a bit skittish about using wall power, I use an
AC adapter w/12 volts (though the one powering my headphone amp is 24v
regulated, so the op-amp gets +/- 12v much more than is ever needed for
boosting heaphones, but gives the op amp plenty of headroom to source
current for the low impedance phones I have)
... One of these days I'll upgrade it to an op-amp w/ a mosfet output
stage so I can get as much current as I can, even though this is plenty
loud ;)
--
~Mike
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