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Wosag
Registrace 2. 04. 2020
Uses for Diodes
An explanation of how
Diodes work and the many uses they can be put to.
Diodes work and the many uses they can be put to.
zhlédnutí: 368
Video
e Ink or ePaper displays
zhlédnutí 78Před 14 dny
A very interesting discussion on how this technology works.
The DY SV17F Sound Player
zhlédnutí 181Před měsícem
A very affordable and versatile digital audio player.
How servos work
zhlédnutí 149Před měsícem
This is part 1 and looks at the internal mechanism and electronics.
DCC Sound
zhlédnutí 146Před 2 měsíci
Keith tells us about the difference sound can make to your layout
West of Scotland Area Group at the Scottish Event Campus Feb. 2024
zhlédnutí 197Před 2 měsíci
Neil talks us through what is involved at an exhibition like this.
Using Lochmaster
zhlédnutí 321Před 3 měsíci
Chic describes how you can use this ingenious program to help you with Protoboard / PCB design.
A scrolling dot matrix display
zhlédnutí 191Před 4 měsíci
Davy esplains the many uses of a Scrolling Dot Matrix Display and how to program it.
Touchscreen Control Panels
zhlédnutí 277Před 4 měsíci
Davy tells us about the many advantages of using a Touch Screen rather than a conventional mimic panel to control your layout.
Faultfinding on a signal generator
zhlédnutí 366Před 5 měsíci
Chic explains his approach to faultfinding his defunct signal generator.
Development Boards
zhlédnutí 257Před 5 měsíci
A discussion on the many Developement / Breadboards now available. Scheduled for 30th January 2024
Bipolar LED power indicator
zhlédnutí 196Před 6 měsíci
How to wire up a bipolar led to indicate a power supply on or off - scheduled for 16th January 2024
Disk speeds
zhlédnutí 150Před 7 měsíci
A discussion on how disk speed can affect your computer performance. Scheduled for 19th December 2023
KIllin & Ballachulish layout
zhlédnutí 184Před 7 měsíci
A detailed view and description of this great layout. Scheduled for 5th Dec.2023
3 way points using servos and pushbuttons
zhlédnutí 296Před 11 měsíci
3 way points using servos and pushbuttons
An Arduino-based DCC Accessory Decoder
zhlédnutí 1,9KPřed rokem
An Arduino-based DCC Accessory Decoder
Wow- enjoyed the tutorial. Thanks so much for the knowledge, Chic 👍
Sir keep it up your explanation it' so helpful ❤❤
Thank you for your Best explanation ❤ it' really helpful 😢
Thank you for this great informative video! As a noob I've been looking all over the Internet for a simple way to connect this sound module without finding any, until now! Short, sweet and to the pooint! Many thanks! :)
Great Video! could You please be so kind and give us the URL where software option 2 is located (can be downloaded). Chris Sharp at Arduino Sig? Thanks Wolfgang
food for thought
Thanks for the excellent video. Are you able to give the specs for the capacitors please. Sorry if you did, and I missed it. Cheers.
thanks
What rate are the diodes Dave
Excelente
A lovely layout, well presented.
I posted this last year on Merg, though the actual work was done in 2022. Coming back to it again, having bought a second Wainwright to convert, using an old CR 123 body and tender top, I found it really useful. I reckon I will do the second conversion in 5 days, as opposed to the five weeks the original took.
All very well in theory. The maximum length of cassette easily manageable is about 36” above that it’s not practical So how do you go with a locomotive and say eight coaches or freight train with a loco and 20 wagons
split the train onto 2 cassettes?
I have four foot cassettes which are still practical. It depends on the space you have to move about in and your own confidence in what you can handle. I think six foot would be possible Cheers Gormo
One special feature you did not mention; You can place components and edit all on both sides of the pcb! So you can make very compact pcbs... You made a good review of Lochmaster, well done. One point for program improvement schould be a library editor and taking lenght measuments, like in Splan8...
No BOM generation? How about >Board > Component list< Create - in plain text or Excel!
I have always found the blue wire that is the common for lighting is usable for the + wire on the keep alive
cool!
Where can I find this kind of motor structure?
What would happen if we reversed the diodes so the cathodes rather than the anodes face one another?
Excellent Video, explanation using simple terms
Excellent. I have learnt a lot thank you.
You can eliminate the diodes by wiring the limit switches in place of the cross connection on the reversing switch. Just relocate the red motor wire to the terminal closest to negative power label in the drawing.
Awesome info .Thank you.
I remember using the optocoupler igbt driver and I have 15 volt to the collector but the multimeter showing the same 6 voltage from the pwm ic not 14.45 volt can you explain why I only get 6 volt instead of the 15 volt to driver the igbt that need 15 volt to fully charge up
Excellent review of a brilliant loco!
i don't have any of these problems, i run my locos on internal batteries and hm7000 sound decoders which i buy for £60 (the batteries are free). It doesn't matter what points i use or whether i have a reversing loop thingamyjig. Also i have no need for a track cleaner as my track does not supply power to my loco via the wheels and then through a contact made of a conducting material that must be kept clean. My locos work everytime and never stutter or stop, oh and i nearly forgot i don't need a stay alive, my locos are alive.🙂
That’s all very well if you have loads of room in your locomotives. What scale are you running?
@@davidrichie9570 4mm
@@davidrichie9570 4mm
Great...So I am building my Granddaughter a 3 storey dolls house from scratch with a Elevator from Ground to first floor. But instead of the "2possition,Double throw" I wish to put a push button on G and on1st to call the lift up or down. Just like we do in real life. Could you help or point me towards a diagram for independant buttons? Thankz
What is the purpose of the opto in the circuit at 13:20 in the video? Seems to me to be adding an unnecessary component that adds cost and is another possible failure point. It is not providing any isolation or noise immunity between the processor supply and the relay supply as they are tied together with the common 0V line. Just drive the transistor base from the processor output through the appropriate current limiting resistor. The voltage difference between the processor and relay supplies is accommodated by the Vce rating of the transistor.
And what kind of diodes?number?any information on that?
As the eventual recipient of this I am totally in awe of this talent. Just amazing and trying to be very patient!
Excellent, and well illustrated.
thank you, very comprehensive overview and including your personal mesurements which is an enourmous valuable input. very impressive is the ramdisk example. some months ago we fitted a 500gb nvme ssd on a pci-e card and assigned it with a software program as cache to the system drive (sata ssd). The computer is aged (10 years +) but a working horse (2 xeon e5-2650 cpu) and didn't want to start from the pci-e even after tweaking some days. It is used remotely by several users and the performance went up so impressive that they love again using it for scientific calculation. Before we were stopped by the 128GB RAM size available for that machine and always ran into cache issues via the sata interface. The installation of this virtual cache changed the situation drastically. Thank you again for the video and best wishes for christmas, Albrecht
Thank you for this very interesting and well structured presentation. I very much enjoyed seeing your approach to researching, designing and building this excellent layout.
Great coverage of the subject Davy. I had not looked at the MERG CDU. Clever stuff. Re 1 cap on a CDU vs 2. 2 Caps in parallel will have a lower ESR. This may not matter unless the CDU is powering several solenoids together via a diode matrix.
Interesting video. I have problems when turning power on because of everything wanting to turn on at the same time. Thanks to you I have ordered some pmp 26 sequencers.
You don't need the diodes. You split the positive, between the power supply and the switch, wire your switches there, and wire the positive to the each pin of a cross connect, and then just wire the negative the regular way. You remove having to use Diodes.
Can you do a quick diagram for this?? Would be really helpful!
@@psychobillytetch Uploaded
@@psychobillytetch This is so irritating. CZcams keeps delete comments for no reason
Before the comment where I say "Uploaded", I tried informed you that was going to upload and to check to see when I do. That was about 15min after your comment/request.
you see it? @@psychobillytetch
Email didn’t work.
Do you also have a circuit diagram?
I love this! I have tried to send an email for the code. Hope it makes it to you.
Hi David reply to webmaster@wosag.org.uk from your own own email address and I will send the code to you. I have randomised the route the train takes. Better I think ! Neil ps. circuit diagram not done yet - layout is away to have scenery added
@@wosag9523 thanks, email sent.
Hi could you tell me the name of the clamp holding the wheel please. Good informative video. Thanks
The clamp I used is generally known as a "universal work holder", and I bought this one on Amazon, Modelcraft PCL8010/B Bench Universal Work Holder. It currently sells on Amazon for ~£18, but Googling "Universal Work Holder" will highlight a raft of other sources. Keith
what temp should the soldering iron be for SMD soldering please?
It's a question with a multi-faceted answer. You should use a temperature that suits the solder you are using, the iron, in terms of both its power and the shape and size of its tip, the parts and board you are soldering to, and when working in SMD, the flux you are using. It should be hot enough to melt solder instantly on the iron, and to get the joint made in a second or two, but not so hot that it shocks the part or the board. Many MERG pcbs have unnecessarily fine tracks that can be induced to shrivel up with a slight overheat. If you want starting numbers I currently use an 80W Weller MSP iron and/or a 60W chinese TS100 running off an RC battery. I set these to about 320 -340C. I use Amtech BGA rework flux for best, certainly for rework, or flux out of flux pen for day to day. Additional solder is usually 28ga multicore from RS/Farnell/Rapid or 5micron solder paste. A good way to 'get your eye in' is to solder SMD ( 1206 or 0804 ) resistors/caps between adjacent tracks of a piece of veroboard. My technique is to tin both tracks, then remove the solder with a solder sucker or braid, this leaves the areas on both sides tinned, but flat. I can then place the part. I often use tweezers or the finger of God to hold it in place while I reheat/reflow it into place with the iron. I then backfill solder into the connection on either side. I use a webcam feeding a 28 inch monitor as a soldering microscope, though the adonstar 'dashcam' type microscopes are good too.
Thanks for providing such a full response, much appreciated.
This is by far the best stay alive CZcams I have seen. Very clear presentation covering all aspects, very well done Wosag.
Nice thanks learnt heaps. Hi from NZ
💖💖💖💖
How can I pause/stop the switch inbetween
By using a DPDT switch with Center OFF. On - Off - ON. Shown at 4:02, you can see the Center Off, but I don't think he ever mentions it tho. Since the one he is actually using is a On - ON. You can see that there is no Center Off. 10:55. You can use a Momentary DPDT, so that you press it one way and let go, it returns to Center off.
Can I use it for motor in DC loco ??
The reason stay alives are successful in DCC is that the power is a constant voltage supplied all the time. The storage capacitor in the stay alive is therefore always charged, even if the loco is standing still. With a DC system the track is only powered when the loco is moving, and then only at a fraction of the ~12V supply. The storage capacitor therefore cannot build sufficient charge to be of much use.
Where are PMP 19 circuits available? What is the complete reference to the Journal?
Check out merg.org.uk/content/kits
Any chance you could shre the PCB file? (I am a MERG member).
Wish I had known a bit more about this a few years ago. Dear old Apple decided to upgrade my machine to 64 bit, and low and behold all the software that I had purchased that was 32 bit no longer worked, and they didn't care? so I had to start again and spend a load of cash on 64 bit software. Great video well done indeed, thank you!
Thank you for putting so much effort into this presentation. Very clear. I am going to go away and play with this now.