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>> THE REPLICANT << Experimental 'Steamy & Gasoliney' Sound-System
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 Posted: Tue Dec 20th, 2016 04:57 am
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Bootlegbar
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This is interesting. Thank you guys for the research and the time and effort to post for others to see. Stephen

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 Posted: Thu Feb 9th, 2017 09:56 am
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Si.
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Just to add to the 'experimental junk' on the work bench...
...I thought I'd get some SUPER CAPACITORS to blow-up !! :shocked:

This seems like an excellent cheap place to get them from :-

http://www.ebay.co.uk/itm/Supercapacitor-2-7V-5-5V-0-33F-0-47F-1F-1-5F-2F-4F-10F-1-5-2-8-10-12-16-20Pcs-/371739963986?var=&hash=item568d6db252:m:mZrrX4rtIbJrvSi6ZA-KLRw

They have TONS of different values & sizes & Voltages to choose from.
I bought five 1.5 Farad, 2.7 Volt ones to check out.
They seemed to be the most suitable for space saving & power capacity.
They were pretty cheap I think, at only £1.49p inc. P&P for five.

:bg:

Si.

Attachment: s-l300.jpg (Downloaded 77 times)



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' Mysterious Moose Mountain ' - 1:35n2 - pt.II
http://www.freerails.com/view_topic.php?id=7318&forum_id=17&page=1

' M:R:W Motor Speedway !!! ' - 1:32 Slotcar Racing Layout
http://www.slotforum.com/forums/index.php?showtopic=59295&st=0&a
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 Posted: Thu Feb 9th, 2017 12:56 pm
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Helmut
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@Si
I'm afraid what you'll get is just that - some stuff to blow up. Be aware that there are many  outlets around that sell off the factory rejects, same case with cheap Lipos. Tell us your experiences with that SumTingWong store:glad:



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 Posted: Thu Feb 9th, 2017 11:23 pm
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Si.
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@Helmut


Ah, a nay sayer !

My favorite type of customer !!

Always ready & willing to pay TEN TIMES the going rate, for exactly the same stuff.


As a well seasoned & experienced buyer, of large quantities of electronic components, for many years, I can't agree with your assumption.


Also the very fact that buying parts from eBay, allows you to see & read ACCURATE customer feedback, regarding the parts & performance of a supplier, makes comments like yours even more strange.

There's just no reason for busy eBay suppliers of electronic components to sell anything other than 'normal' parts.

They are making plenty of money anyway, so why mess with these 'alleged' factory-rejects ? and have endless returns & complaints.

I have NEVER bought ANY sub-standard parts from this type of supplier, EVER.


I do have a story about a sanded & lasered J74, but that aint what we're talking about here.

I've even come across people who CLAIM that there are 'fakes' of Philips DAC chips about ... Oh dear ...


Over the years, I can hardly recall any instance EVER of actually buying & using ANY duff electronic parts.

Yet the first thing you'll hear when 'the experts' get talking about suppliers, is how MONEY guarantees quality.

What a load of TOSH mate !


It's a 'state of mind' Helmut & I have the good fortune to generally think, buy & design stuff 'outside the box' !


I guess the free glass of Champagne from the 'successful' battery salesman, is enough to convince most people that 'their' money is in safe hands !

Yeah RIGHT !


Si.


The world keeps turning & the supply chain keeps rolling on . . .



____________________

' Mysterious Moose Mountain ' - 1:35n2 - pt.II
http://www.freerails.com/view_topic.php?id=7318&forum_id=17&page=1

' M:R:W Motor Speedway !!! ' - 1:32 Slotcar Racing Layout
http://www.slotforum.com/forums/index.php?showtopic=59295&st=0&a
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 Posted: Thu Feb 9th, 2017 11:40 pm
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Helmut
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@Si
I had such an experience with cheap NiMHs from China - but agreed, I too have done many satisfactory buys for a song from alibaba. It's just about what supplier you choose - remember the pushbutton issue? I'd like to know, if you find the time, what the DC ESR and the leakage current of the cylindrical ( The real supercaps ) types actually is.



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 Posted: Fri Feb 10th, 2017 12:11 am
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Si.
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@Helmut


Yes, I remember 'the push button issue' very well.

I didn't bother to continue that conversation, since it was obviously going nowhere.


I don't believe for a minute that there are 'cheap copies' of THAT switch out there whatsoever !

It is just a CRAP switch !

It is clearly a problem part, which I could probably write another several long paragraphs about, but why bother ?


It was clear that You, John, Johns club, Me, and probably a ton of others ALL had the same problem with it.

Even in my case, when the switch was speced. and used PROPERLY, and not for 'high strain' solenoid operation !

Also you actually kinda implied that I was wrongly using the switch for a 'low voltage' application as well, which to anyone who 'knows', I was not.


That poorly designed component, I believe, was probably manufactured DECADES ago, yet is still out there & being sold even by supposedly 'decent' suppliers, to this day.


Copies ?

NO ! ... There are no 'copies' of that part.

1 part, 1 set of tools, 1 factory, would be my guess.

I have to say, that I am ASTOUNDED that Rapid Electronics are dealing with THAT switch.

I simply cannot believe that ANY experienced professional parts specer would go near it !


Si.


Now THE RUSSIANS !

They made some seriously GREAT electronic parts, back in the day !

Some of their stuff, really puts European, U.S. and Far East manufacturers to shame.

They also made the odd CRAP part or two as well . . .


Not many though ... The thought of a one way trip to Siberia, kinda makes the factory Q.C. guy do his job well !

In the West of course, MONEY is the motivating factor !



____________________

' Mysterious Moose Mountain ' - 1:35n2 - pt.II
http://www.freerails.com/view_topic.php?id=7318&forum_id=17&page=1

' M:R:W Motor Speedway !!! ' - 1:32 Slotcar Racing Layout
http://www.slotforum.com/forums/index.php?showtopic=59295&st=0&a
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 Posted: Mon Nov 20th, 2017 10:22 am
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Michael M
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Lee,

Your friend can still return that TV.  See that nasty scuff mark on the side of it?  Must of been damaged in transit.  Don't want a TV with a scuff mark on it...store's gotta take it back.


Ah, the good 'ole days when life was simpler and everything wasn't computerized in some way.  Now ya need a Masters in IT to make some stuff work.




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Michael
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Nye, Inyo & Esmeralda Railroad
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 Posted: Tue Feb 27th, 2018 06:31 pm
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Toeffelholm
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Hi,

has anyone made some efforts toward loco sound or layout sound since the last contributions?

After spending much of my limited time for scenery and layout building - because for what use is the best layout sound if you don't have a layout - I want to proceed with my sound laboratory. 

After I have tried this high quality phoenix sound I will try a not exactly velocity dependent sound using two sound files of a petrol critter that represent two different velocities (purchased on ACME engineering). Although I would have to waive the starting and shutdown sequence then.

I have bought the sd card player linked at the bottom for this task. Basically thought for use with an Arduino the can also be operated as simple MP3 player. You can only play sounds stored on the device forward and backward then.


WTV020SD




Juergen

Last edited on Tue Feb 27th, 2018 06:32 pm by Toeffelholm



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 Posted: Tue Feb 27th, 2018 07:44 pm
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Si.
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Hi Juergen :wave:



I am pleased to hear that your Phoenix Sound is working good.

It was nice to have our conversations about this at the time. :bg:



The small MP3 SD Card Player 'WTV020-SD-16P' looks like a very interesting board.

I can afford it as well, at a very nice price of only £1.21p inc. P&P !! :P

Well done for finding it.





It goes to show, just how many different & affordable options are available for the sound experimenter. :old dude:



I had not seen these ultra-small 'buttonless' boards before ...

... perhaps because I was focused on finding the best small 'panel mount' option.



I guess I should buy one & check it out ! L:

Still need to buy & check out the ultra-small 'Bluetooth' board we talked about some while back.



My available time recently, has been spent on modeling my car-builds mostly. :thumb:

Other than some R.C. experimentation, electronics has been a low priority here at present.

Partly because I spend a lot of time working with electronics & as a break scratchbuilding rests my brain ! :P



The new board looks  C :cool: :cool: L  Juergen !

Nice price & very simple as well !!



This is really what >> THE REPLICANT << Thread is all about ...

... things that ordinary-folk, not rocket-scientists, can understand, afford & can easily experiment with. :!:



:pimp:



Si.



____________________

' Mysterious Moose Mountain ' - 1:35n2 - pt.II
http://www.freerails.com/view_topic.php?id=7318&forum_id=17&page=1

' M:R:W Motor Speedway !!! ' - 1:32 Slotcar Racing Layout
http://www.slotforum.com/forums/index.php?showtopic=59295&st=0&a
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 Posted: Tue Feb 27th, 2018 09:06 pm
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Si.
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Some more info. on the 'WTV020-SD-16P' board & simpler versions.



Although this board has a pretty complex array of 16-pins ...

... many of them are often unused, so it is not as complex as it may appear at first.

'Arduino' use, which is not an option many will understand or need, uses many of these pins.



There are simpler versions of this board available so I see, for regular use.



The 'WTV020' seems to refer to the basic chip-type, the board is constructed around.

The 'SD' means it has an SD slot.

The '16P' means it is a 16-pin implementation.





This schematic shows the board wired in it's most basic form.

It seems to have a very-small built-in amplifier.

Play ... Pause ... Reset ... Buttons are shown connected.





Below, some extra MP3 Player type function buttons are wired in as well.

Again using the very-small built-in amplifier.





Below again, a schematic with an external amplifier connected to the basic 16-pin board.

Volume Up/Down & track Next/Previous buttons have been added as well.





Just some quick research.

It appears the device is Mono ? ... Only 1 audio-output ( Left/Mono ) & 1 audio-amplifier seem available.



Here is a simpler looking version, with less output-pins & a different board shape.

Probably intended for easier, basic operation, without any complex 'Arduino' issues.

The 16-pin version ^^ can be operated as it stands of course as well, as seen above.






Even just a very brief look on eBay in regard to similar devices to these ...

... revealed a whole host of different sizes, pin-outs & options ...

... for what could all be considered basically as :-


Buttonless MP3 Players ! :brill:



:cool:



:dope:  Orrrff to do some rocket-science !  ;)



Si.



____________________

' Mysterious Moose Mountain ' - 1:35n2 - pt.II
http://www.freerails.com/view_topic.php?id=7318&forum_id=17&page=1

' M:R:W Motor Speedway !!! ' - 1:32 Slotcar Racing Layout
http://www.slotforum.com/forums/index.php?showtopic=59295&st=0&a
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