Post by: F. Dandy on Dec 20, 2015 at 06:49 AM
Well, its another amplifier, you may say --- and may not be appreciable to the high end amplifier, but........... maybe it can! It has build into several hundreds stereo and that is awesome with positive feedback, besides it was initially intended for LEARNING the art and design of power amplifier for our younger brethren in the electronics and for people who love to diy and happy of creating good stuff from their finger tips.
More information in the User Manual we prepared, which is also shareware, download it here :
- description of the project
- basic audio setup
- analog and digital
- block diagram /explanation
- circuit diagram
- picture gallery
https://www.dropbox.com/s/o4926dwzpwaqr4a/Issue28_DNY40W_Unreleased%20Tech%20Info.pdf?dl=0
I hope you will like it, and looking forward to compare its sound signature with your high end amplifiers, I or we don't have those high-end amplifier in our hand.
More info:
DNY40W --- the amplfier is capable of delivering 40Watt average power into 8 ohms (sometimes called
the RMS power), that is 80Watts stereo
DNY is the accronym of the guy who designed the hardware (Danny)
P3A2 ------ stands for Pure Analog Processing Power Amplifier
we may have tired of class D / T amp, so, we go back to the pure analog
processing which is more fun with a lot of tweak we can do
we pretty know its DIY --- but look at the finished protoype with matching tone control (another tone control designed by Filipino)
(http://1diycenter.com/diyfunded_TC/15..--Test.jpg)
Bottom = DNY40W Stereo Power Amplifier
Top = diy funded project Tone Control (Bass, Mid, Treble + Volume)
Post by: tony on Dec 20, 2015 at 08:03 AM
Post by: qguy on Dec 21, 2015 at 09:25 AM
Have you compared it to any commercially available amp ?
BTW... I love the Mid tone controls :)
Post by: tony on Dec 22, 2015 at 12:45 PM
you can pm him for his email address or other means to reach him if you need something from him...
i have his email address but until he gives me the go ahead, i can not release that info...
Like myself, Dandy is more diy'er friendly, getting out of his way to help students and other young upstarts...
rochie is in constant contact with Dandy...
Post by: CoolTOYZPH on Dec 22, 2015 at 12:53 PM
Post by: rochie on Dec 22, 2015 at 01:27 PM
Very Good Aesthetics. Hope there will be a local showroom where we can experience the sound. (http://1diycenter.com/diyfunded_TC/15..--Test.jpg)
after I finished mine will let you borrow it :D :D :D, super busy pa kasi kaya di ko pa matapos tapos hahaha, testing na lang and adjustment of bias,already soldered the components in the PCB.
we've got a lot of projects in the pipeline coming in for the DIY community especially for the newbies and students who's in tight budget. honestly the only thing that is hindering us to release a pre-built amp is the fabrication of casing locally.
maybe next year we can release the 150watts/ch amp kit design be our fellow pinoy based overseas.
Post by: rochie on Dec 22, 2015 at 01:46 PM
How much would the set pre and power amp cost ?
Have you compared it to any commercially available amp ?
BTW... I love the Mid tone controls :)
Bro the pre-amp is still under pcb fab but the power amp is available locally in kit form(pcb + components), i know your handy with the soldering iron so you can easily assemble one hehehehehe, assembly and testing is fully documented. PM me if your interested, I promise you it wont break your bank account hehehehe
a little bit of trivia regarding this amplifier.
- one of the designer of this amp is 1 of the only 4 authorized/licensed Mark Levinson technician in the U.S.
Post by: tony on Dec 22, 2015 at 07:23 PM
Bro the pre-amp is still under pcb fab but the power amp is available locally in kit form(pcb + components), i know your handy with the soldering iron so you can easily assemble one hehehehehe, assembly and testing is fully documented. PM me if your interested, I promise you it wont break your bank account hehehehe
a little bit of trivia regarding this amplifier.
- one of the designer of this amp is 1 of the only 4 authorized/licensed Mark Levinson technician in the U.S.
name is Danny Eulogio and is based in washington state.....he designed this DNY40W power amp....
Post by: Abad Santos 7 on Dec 23, 2015 at 12:23 PM
maybe next year we can release the 150watts/ch amp kit design be our fellow pinoy based overseas.
This is an interesting project to wait if not Class A.... :) :) :)
Post by: rochie on Dec 23, 2015 at 01:06 PM
This is an interesting project to wait if not Class A.... :) :) :)most probably class a/b. prototype design is already in testing phase. we will follow the design principle applied to dny40w pcb w/c is flexible enough that you can try different configurations in the input stage w/ jumpers.
Post by: innocent on Dec 23, 2015 at 01:31 PM
Thanks for sharing. ;)
Post by: tony on Dec 23, 2015 at 04:23 PM
most probably class a/b. prototype design is already in testing phase. we will follow the design principle applied to dny40w pcb w/c is flexible enough that you can try different configurations in the input stage w/ jumpers.
these are all class AB designs, but can be run class A if desired, psu and heatsinking will differ....
Post by: Abad Santos 7 on Dec 23, 2015 at 05:02 PM
Thanks. A/B for me will be perfect.
I have already completed several Class A project and AB will be a different flavor to try.
Cheers.
Post by: tony on Dec 23, 2015 at 05:52 PM
Sir Tony, Sir Rochie,
Thanks. A/B for me will be perfect.
I have already completed several Class A project and AB will be a different flavor to try.
Cheers.
you can order kits from Rochie, i have two kits waiting to be built,
i think that there are still some kits available from Rochie, pm him in case you want to build one...
i suggest that you build the version 4 one with current mirrors as input ltp active loads...
Post by: Abad Santos 7 on Dec 23, 2015 at 06:27 PM
Got it.
Sir Rochie,
PM sent.
Cheers.
loi
Post by: tony on Dec 23, 2015 at 06:31 PM
or you can get one from Edrel Sison, he has some stock of 31-0-31 traffos that can also be used.....
this is the redline schematics i used in my second build...
(https://scontent-sea1-1.xx.fbcdn.net/hphotos-xpa1/v/t1.0-9/10173532_1028933843794916_5007492645243763831_n.jpg?oh=1348dd251d7addc424c7a4cc65b2ef87&oe=56BB9A7F)
this build used the rubycon blakgate filter caps, 22kufd/63v in the psu....
(https://scontent-sea1-1.xx.fbcdn.net/hphotos-xaf1/v/t1.0-9/12208393_1028687617152872_3939915642944297896_n.jpg?oh=2abb60672cf4f20941149b4015eca6c8&oe=56EFC514)
Post by: F. Dandy on Dec 24, 2015 at 03:32 PM
Dandy works in china, and considering that the chinese government tries to suppress free internet access there, he may not be able to pop in here as often as he would like to...
you can pm him for his email address or other means to reach him if you need something from him...
i have his email address but until he gives me the go ahead, i can not release that info...
Like myself, Dandy is more diy'er friendly, getting out of his way to help students and other young upstarts...
rochie is in constant contact with Dandy...
thanks Sir Tony
You may contact me on the following :
1. wechat : diycenter <fast and easy, as I always handle my phone with good 4G coverage>
2. [email protected]
3. --> via Rochie
Like myself, Dandy is more diy'er friendly, getting out of his way to help students and other young upstarts...also....
willing to cooperate to a more interesting project, an adventure in the DIY world and customization - freedom of choice of hardware and solution, like this baby (a customized Class D amplifier, with digital controls, didital power Supply <SMPS>< and freedom of display to any message you like to convey)
(http://i889.photobucket.com/albums/ac97/1diyhobby/DR100W%20%20Concept%20Project/15..%20%20EQ%20Test_zpslllo0mbd.jpg)
Anyone can make his dream home audio systems into reality --------------> just you need to know your buddy who can help you (i have my Chinese buddies)
Post by: F. Dandy on Dec 24, 2015 at 03:46 PM
this is the redline schematics i used in my second build...
(https://scontent-sea1-1.xx.fbcdn.net/hphotos-xpa1/v/t1.0-9/10173532_1028933843794916_5007492645243763831_n.jpg?oh=1348dd251d7addc424c7a4cc65b2ef87&oe=56BB9A7F)
Thanks sir Tony for publishing your modification and improvements, that is another leverage or should I say KPI, you can do what you prefer, not just simply dictated by manufacturer in case of commercial amp.
I think that, there are 2 ways we go with this amp, by being a
1. Result oriented
2. Process oriented
I go with #2, dahil iyan nagbibigay ng ligaya sa akin, alam ko nga ins and out ng amplifier ko, that makes me proud to discuss with my friends, i know the biasing and I know how signal are process, and I know how it sounds, its the sum total characteristic of the amplifier :)
I love to be result oriented as well, the only problem is that, I do not have the speaker to match the DNY40W amplifier (total acoustic performance), I am quiet busy really in real job, not even touch those Mark Audio speakers I got ;D ;D
Post by: tony on Dec 24, 2015 at 04:38 PM
Dandy, merry christmas, please do not think i am ignoring you not answering your emails....
it is just that i also have my own personal issues....you know....:D
i hope you can meet with Ric Del Rosario, he used to work with Panasonic in taytay before and has actual experience in production and testing audio equipment....
Post by: F. Dandy on Dec 25, 2015 at 10:23 AM
Let's power up our diy AMP this Christmas
Post by: Abad Santos 7 on Dec 25, 2015 at 04:38 PM
Merry Xmas po...
Post by: tony on Dec 25, 2015 at 04:43 PM
Post by: Abad Santos 7 on Dec 26, 2015 at 01:20 PM
Dandy, if you happen to have some free kits, please give them to Abad Santos 7....:D :D :D
Post by: Lancito on Dec 26, 2015 at 01:35 PM
Post by: tony on Dec 26, 2015 at 04:47 PM
the filipino diy community is a close knit one....we help each other out...;)
no cash transactions are common place.....
Post by: Abad Santos 7 on Dec 28, 2015 at 03:17 PM
VA Capacity?
I still have some 63KuF/63V capacitor, will it be OK? Do I still need to have a softstart?
Is this design sensitive to power supply ripple?
Cheers.
Post by: tony on Dec 28, 2015 at 04:25 PM
in which case transformer needs to be bigger,
but if only for listening to music, you can get away with smaller traffos...
this is one advantage that classB/AB amps have over classA amps...
Post by: Abad Santos 7 on Dec 28, 2015 at 04:50 PM
How about for the optimum rail voltage if I use my existing Capacitor @ 63V.
Im not familiar with AB how much voltage swing I need to achieve 150W. Does it uses
same calculation as with A?
Cheers.
Post by: tony on Dec 28, 2015 at 05:02 PM
Sir Tony thanks.
How about for the optimum rail voltage if I use my existing Capacitor @ 63V.
Im not familiar with AB how much voltage swing I need to achieve 150W. Does it uses
same calculation as with A?
Cheers.
traffos for class A will always be bigger and heavier than that for class AB,
reason being, with classA power delivery is constant, big current is always flowing....
class ab otoh idles at a much lower power than what it can deliver in terms of power output....
up to about 55 volts unloaded and depending on the size of your traffo,
bigger or heavier traffo will need to have lower, say 50 volts...
my rule of thumb for capacitors, about 80% of rated cap dc voltage....
many years ago, i asked the same question to Bob Cordell about the traffo size,
he replied, "get the biggest transformer that will fit in your box..."
Post by: F. Dandy on Dec 29, 2015 at 04:13 PM
any speaker with a 90db sensitivity will mate well with this amp...
This is a nice info Sir Tony, I knew you build several already
There is this thread here in pinoy dvd as
http://www.pinoydvd.com/index.php/topic,201906.60.html
and I replied on #61 about system test based on acoustic (not electrical signal), trying to cooperate with other guys to have a performance test
Dandy, if you happen to have some free kits, please give them to Abad Santos 7....
I had a small chat with Abad Santos 7 over wechat ---- guess now why wechat? hmmmm, I guess he have more kits than me, high end kits.
His place is where many diyers, not simply diyers, but diyers with a mind of selling diy stuff to the world.
For a start, what is the ideal rail voltage for the 150W/CH?
VA Capacity?
I still have some 63KuF/63V capacitor, will it be OK? Do I still need to have a softstart?
Is this design sensitive to power supply ripple?
Cheers.
Wow! At this target power 150W/channel -----> I assumed this is average power into 8 ohms speaker (sometimes many called Wrms), this project needs almost 85% overhaul, I am not suggesting it.
There is another filipino design power amp (which is also my school project), called Laguisma Series Amp from Baguio City, BJT and MOSFET output stage which were designed for high power at 8 ohms load.
And........... Mr. Tony have design idea of real high power output using lower impedance speaker load.
This project DNY40W is more of an average power needed in average house, room or office environment, the 40W/channel or 80W stereo -----> a personal listening power more than enough to fill your living room -- of course, when the input sensitivity is met.
The designer consider the idea, that, in home environment (average house size), the amplifier power suggested is about 20Wrms/channel or 40W stereo, at this power it should bring the music into a concert level (assuming the amplifier is driven correctly paired with good speakers --- not a speaker that easily taxed when increased the volume, or an speaker that changed the natural sound when increase the volume).
Where you used 100W/channel (200W stereo) in a home environment is like using a 10 wheeler truck to carry a piece of furniture, But, if that's what we need, go for it -- choose our Filipino designed amplifier, its fun and adventure to build them.
To answer some :
** the 63,000uF is over killed for this project, 10,000uF each on the split supply is good enough. But of course, if you feel happy to use it, welcome ---- many diyers make what is called "capacitor bank", it is true that the higher the capacitance on the PSU, the better, and they prefer to stock caps in a bank a high as 80,000uF or even 100,000 uF.
** at rated supply voltage of +/-30Vdc and with 10,000uF on the PSU it should not need softstart. Some guys also used +/-50Vdc with component changed in the circuit without softstart.
What is needed and highly recommended to add to this project is the Speaker Protector.
Post by: F. Dandy on Dec 29, 2015 at 04:26 PM
This board was design by a Filipino in KSA (in a team cooperation) and prototype by guys in China.
(http://i889.photobucket.com/albums/ac97/1diyhobby/DNY40W%20-%20Earlier%20build/Parametric-Test_zpsyhdoksea.jpg)
The newly design PCB - new prototype was subjected into an electrical test, sometimes it called the parametric test. We use here dummy speaker load (resistive) -- the one below the notebook, those voltmeter were used to constantly checking the dc bias, offset voltage, how hot the components, any smell or sign of burn, etc... the notebook was there to record results.
On the right side of the PC, is a simple DAC used too drive the DNY40W newly design amp.
Normally used this test, at any given time where there is something wrong --- we will not physically damage the speaker (expensive speaker).
Here is a clearer shot, showing those Fuse
(http://i889.photobucket.com/albums/ac97/1diyhobby/DNY40W%20-%20Earlier%20build/Parametric%20test%20clear_zpsrt1hv5zf.jpg)
Here is the music test, where we actually attached the speaker (that small speaker) and can listen to :
1. Noise
2. oscillation
3. other anomaly
4. first grasp on the music, specially on that called Cross Over distortion adjustment for Class AB
(http://i889.photobucket.com/albums/ac97/1diyhobby/DNY40W%20-%20Earlier%20build/test-with-Analyzer_zps1uphsax7.jpg)
At this stage, we are more interested to see how stable the amplifirr, rather than judging the acoustic performance ------ we have to go through test for several hours
a simple video from the test - something to look at
https://www.dropbox.com/s/hdtnl4yre090j59/DNY40W_Flymetothemoon.mp4?dl=0
Post by: F. Dandy on Dec 29, 2015 at 04:48 PM
(http://i889.photobucket.com/albums/ac97/1diyhobby/DNY40W%20-%20Earlier%20build/PCBonly_zps1cykqsa8.jpg)
(http://i889.photobucket.com/albums/ac97/1diyhobby/DNY40W%20-%20Earlier%20build/thebluepcb_zpsx8mfp5f4.jpg)
(http://i889.photobucket.com/albums/ac97/1diyhobby/DNY40W%20-%20Earlier%20build/broampsis_zpshcrtlo6i.jpg)
One thing that you may notice is the size of the heatsink, in our prototype, the heatsink is small, we know that we will not use the DNY40W into its maximum power of 40Wrms in our daily use, and thus we may not need big heatsink ---- we choose the biggest that will fit into our intended cabinet.
here is the mock up design of the casing
(http://i1140.photobucket.com/albums/n568/myElabStore/DNY40W/digitalcontrol_zpsd2e097d9.jpg)
(http://i1140.photobucket.com/albums/n568/myElabStore/DNY40W/front_zpsd3682030.jpg)
Once the circuit and PCB has been stabilized, we're ready to have free samples to our friends,
(http://i889.photobucket.com/albums/ac97/1diyhobby/DNY40W%20-%20Earlier%20build/Kit%20exploaded_zps2axneoys.jpg)
and eventually, contributing the technical know how to schools - University, the forum and electronic community, and be able to let other guys to experience the adventure we had specially for those gys who feel bored already of simply buying an amplifier, crying to I want to build my own amp on my own hands
Well, its not hard, its fun, specially when group of Filipino will join forces, even mountain and ocean aparts
Post by: F. Dandy on Dec 29, 2015 at 05:07 PM
Our heatsink is small, as we need small heatsink so it can fit into the casing, so, we focus on how to achieve a smaller heatsink without thermal run away, we have several test
a) using customized Arduino Temperature data log to monitor the heatsink
(http://i889.photobucket.com/albums/ac97/1diyhobby/myDNY40W%20Amplifier%20Build/Elec-Test_zps2qkvpe3d.jpg)
(http://i889.photobucket.com/albums/ac97/1diyhobby/myDNY40W%20Amplifier%20Build/9..-Temp-monitor_zpsoakslzdl.jpg)
that circuit with blue LED
b) manually monitor using infrared and check from time to time, here is a reading after sometimes
(http://i889.photobucket.com/albums/ac97/1diyhobby/myDNY40W%20Amplifier%20Build/Temperature-Test_zpsczvvtpgq.jpg)
again, our load is resistive 8 ohms 200W, in any case that the power transistor will exhibit thermal run-away, I won't damage a speaker
At the same time, we run also DAQ (gather data against time)
(http://i889.photobucket.com/albums/ac97/1diyhobby/myDNY40W%20Amplifier%20Build/11..-Reliability-test-DAQ_zps5yga1hbi.jpg)
(http://i889.photobucket.com/albums/ac97/1diyhobby/myDNY40W%20Amplifier%20Build/12..-DAQ-PC-base_zps6zob82fm.jpg)
We are watching the performance of the servo mechanism that will prevent the output transitor from thermal run-away, that, when the heatsink gets hot, the servo mechanism or the Vbe multiplier will lower the bias voltage to the transistor. If it will not lower it, the output transistor keep on conducting and keep generating heat and keep on.... till the time it get busted (thermal run away).
With several test, it was ok to use the heatsink, and so, we can fit into its case :
(http://i889.photobucket.com/albums/ac97/1diyhobby/myDNY40W%20Amplifier%20Build/Case-start-building-6_zpsaakaahtc.jpg)
Post by: F. Dandy on Dec 29, 2015 at 05:20 PM
(http://i1140.photobucket.com/albums/n568/myElabStore/Pure%20Analog%20Tone%20Control/CASEDNY40W_zps21c28798.jpg)
We're not good in 3D, so we have to go primitive way
(http://i1140.photobucket.com/albums/n568/myElabStore/Pure%20Analog%20Tone%20Control/PizzaBox_zpsf855c2d5.jpg)
(http://i1140.photobucket.com/albums/n568/myElabStore/DNY40W/digitalcontrol_zpsd2e097d9.jpg)
(http://i1140.photobucket.com/albums/n568/myElabStore/DNY40W/front_zpsd3682030.jpg)
(http://i889.photobucket.com/albums/ac97/1diyhobby/myDNY40W%20Amplifier%20Build/Case-start-building-1_zpspiqyly46.jpg)
(http://i889.photobucket.com/albums/ac97/1diyhobby/myDNY40W%20Amplifier%20Build/Case-start-building-2_zpsxc7hcas5.jpg)
(http://i889.photobucket.com/albums/ac97/1diyhobby/myDNY40W%20Amplifier%20Build/Case-start-building-3_zpsjsqytp7g.jpg)
(http://i889.photobucket.com/albums/ac97/1diyhobby/myDNY40W%20Amplifier%20Build/Case-start-building-4_zps46mjaysu.jpg)
(http://i889.photobucket.com/albums/ac97/1diyhobby/myDNY40W%20Amplifier%20Build/Case-start-building-5_zpsiv9qtv8a.jpg)
(http://i889.photobucket.com/albums/ac97/1diyhobby/myDNY40W%20Amplifier%20Build/Case-start-building-6_zpsaakaahtc.jpg)
How the heatsink were positioned :
(http://i889.photobucket.com/albums/ac97/1diyhobby/myDNY40W%20Amplifier%20Build/20...-assembling-on-casing_zpsnmpxisqu.jpg)
With the intended Pure Analog Tone Control
(http://i889.photobucket.com/albums/ac97/1diyhobby/myDNY40W%20Amplifier%20Build/Case-start-building-7_zpsex4zyzwq.jpg)
Post by: F. Dandy on Dec 30, 2015 at 06:30 PM
(http://1diycenter.com/1diyDATA/P3A2+P2ATC_test.jpg)
Left : Pure Analog Tone Control
Right : DNY40W / P3A2 (Pure Analog Processing Power Amplifier)
Speaker : TEAC
Music Source : PC playing CD (used DAC)
(http://1diycenter.com/1diyDATA/DNY40W-Systems.jpg)
Post by: F. Dandy on Dec 30, 2015 at 06:59 PM
a) Transformer
b) Split Power Supply
c) Speaker Protector (highly recommended)
d) other stuff like Input terminal, Speaker terminal, volume control, etc.
With my prototype, I add a little spices, medyo masaya ako kung mayroon kaunting add-on stuff, like MicroController (MCU) to handle the AC Power On with the Push button ---- that Push Button with blue color.
I should simply used a Toggle Switch which can handle the 220Vac to make it simple, but........... i used a MCU + relay to do it.
Here is the MCU board,
(http://1diycenter.com/1diyDATA/1..Making-the-Contrller.jpg)
The MCU is based on Intel-8051 Core, 8 bit processing MCU, can use Assembly, C, Pascal, or block diagram programming
(http://1diycenter.com/1diyDATA/2..The-controller_mark.jpg)
made in the Philippines -- Baguio City
The MCU Board, Speaker Protector
(http://1diycenter.com/1diyDATA/4..the-MCU.jpg)
The MCU is actually supervising the Speaker Protector, if the Speaker protector sense a dangerous offset voltage that tend to damage the speaker, the MCU will shut off the relay controlling the speaker, detached teh speaker from the amplifier board, and also it will shut off the 220VAC power. The MMI programmed (Man Machine Interface) is that, the system will inform the User thru continuous fast blinking of the Push Button LED.
(http://1diycenter.com/1diyDATA/5..Split_AC_AC.jpg)
Here is the relay controlling the 220 AC power, the make /break is controlled by the MCU when you push the On/Off button. It shows also the AC line filter and the split power supply used.
One good thing about the use of MCU is that, you can make the amplifier to sleep for sometimes without human intervention, say, you can programmed to automatically shut off after 3 hours of playback ---- good features to use at night time, and the MMI for a combination of push on the Push Button switch.
Post by: F. Dandy on Dec 30, 2015 at 07:39 PM
(http://1diycenter.com/1diyDATA/DNY40W-AMP_info.jpg)
with the X6 DAC and Pure Analog Tone Control
(http://1diycenter.com/1diyDATA/DNY40W-Systems_DAC.jpg)
that's the process of building our prototype DNY40W (eventually along with its intended Tone Control), other guys build the same boards with different Xformer, power supply and casing form factor (minus the MCU stuff), looking forward to see them to post it here.
..
..
..
there seems to be a problem in downloading the dox from Dropbox, so I added another download site :
http://1diycenter.com/1diyDATA/Issue28_DNY40W_Unreleased%20Tech%20Info.pdf
Post by: tony on Jan 01, 2016 at 07:42 AM
Post by: F. Dandy on Jan 01, 2016 at 01:00 PM
and to all pinoyDVD members - all the best for the year 2016.
Post by: innocent on Jan 03, 2016 at 01:24 PM
Post by: tony on Jan 04, 2016 at 11:43 AM
wechat : diycenter <priority>
email : [email protected] / [email protected]
Post by: tony on Jan 04, 2016 at 11:52 AM
Quote
The MCU is actually supervising the Speaker Protector, if the Speaker protector sense a dangerous offset voltage that tend to damage the speaker, the MCU will shut off the relay controlling the speaker, detached teh speaker from the amplifier board, and also it will shut off the 220VAC power. The MMI programmed (Man Machine Interface) is that, the system will inform the User thru continuous fast blinking of the Push Button LED.
Here is the relay controlling the 220 AC power, the make /break is controlled by the MCU when you push the On/Off button. It shows also the AC line filter and the split power supply used.
One good thing about the use of MCU is that, you can make the amplifier to sleep for sometimes without human intervention, say, you can programmed to automatically shut off after 3 hours of playback ---- good features to use at night time, and the MMI for a combination of push on the Push Button switch.
several years back, some members asked me if this type controller can be done,
so i asked Dandy to design one.....and so this is it...
perhaps Dandy can make a working prototype for members to try out....
or Dandy, i can make a complete stand alone unit if you give me the controllers....
rochie and i can work this out... ;)
Post by: F. Dandy on Apr 01, 2016 at 05:02 PM
may take a while for Dandy to reply, so please contact him here:
wechat : diycenter <priority>
email : [email protected] / [email protected]
Indeed, thanks Sir Tony
Nakakainggit nga e, di uubra VPN ko, samantalang si kabayan maayos naman daw.
Sana marinig namin yan kahit sa You tube man lang. Pra may idea kami. Bka puwede magpagawa kung kaya ng budget.... :)
I know si Sir Tony mayroon siya DNY40W unit, Puede ba makining sa inyo Sir Tony? Wait, I asked one of my friend to upload in youtube, as youtube is perfectly an example of 100% block website in my place.
I suggest you to build it, the real fun is on the assembly, testing and casing with your own design. You surely will gain amplifier diy building, self fulfilling and confidence of yourself. Unleashed the power of your fingertips.
Post by: F. Dandy on Apr 01, 2016 at 05:20 PM
several years back, some members asked me if this type controller can be done,
so i asked Dandy to design one.....and so this is it...
perhaps Dandy can make a working prototype for members to try out....
or Dandy, i can make a complete stand alone unit if you give me the controllers....
rochie and i can work this out... ;)
Awesome idea Sir Tony, that can be done.
Pero unahin kaya muna natin ang speaker para sa DNY40W, may nga nag rerequest kasi, been talking with fellow member if he can sneak some speaker from the factory thru other filipino contact :D :D mukhang may peerless, vifa, sonos, MA, but prefer the unbranded and affordable but sounds good.
Post by: rochie on Apr 01, 2016 at 05:22 PM
Post by: tony on Apr 01, 2016 at 05:37 PM
Quote
I know si Sir Tony mayroon siya DNY40W unit, Puede ba makining sa inyo Sir Tony? Puede ba makining sa inyo Sir Tony?
pwede naman, i have two completed working units and looking at build no 3 and 4.....
Post by: nogo on Apr 02, 2016 at 06:52 AM
Post by: F. Dandy on Apr 07, 2016 at 03:56 PM
1. https://www.dropbox.com/s/o4926dwzpwaqr4a/Issue28_DNY40W_Unreleased%20Tech%20Info.pdf?dl=0
2. http://1diycenter.com/1diyDATA/Issue28_DNY40W_Unreleased%20Tech%20Info.pdf
the 2nd share folder is better.
Something to look at (my home working area)
(http://1diycenter.com/1diyDATA/DNY40W-New-Year.jpg)
.. the DNY40W amplifier cased on black fiver glass below those FXAudio mini Class D amplifier, DAC and
Bluetooth interface
... those with fiber glass casing from bottom : 30W Class AB amplifier, customized Tone Control,
DR100W EQ and Tone Control running my own firmware (hybrid analog & digital)
let's see it zoom
(http://1diycenter.com/1diyDATA/DNY40W-closer-look.jpg)
Its been a while since we finished the design of this amplifier, and once we are comfortable with it (reliability test, assembly and test from the field of different builder, sound test,etc...), it stays off the working table.
And........... what is next is its inverted version, as several guys are asking the question " will the sonic performance be improved if the differential amplifier is NPN" instead of PNP? Will it be better if we have the current Mirror?.... We will not be able to answer this even with current PC base Simulator (we have).
The best is, to build it and compare it, and that's what we are trying to do now, and tell you, there's a lot of fun in doing it.
Post by: rochie on Apr 25, 2016 at 10:32 AM
http://v.youku.com/v_show/id_XMTU0NjkyNDM0MA==.html (http://v.youku.com/v_show/id_XMTU0NjkyNDM0MA==.html)
http://v.youku.com/v_show/id_XMTU0NjI4MDk3Mg==.html (http://v.youku.com/v_show/id_XMTU0NjI4MDk3Mg==.html)
Post by: tony on Apr 25, 2016 at 12:30 PM
Post by: rochie on Apr 25, 2016 at 01:22 PM
^Dandy has a nice singing voice, pang tawag ng tanghalan....:D
hahahaha, sabi nga namin ni Danny husky ang boses nya ala Renz Verano :D :D :D :D
Post by: tony on Apr 25, 2016 at 01:23 PM
hahahaha, sabi nga namin ni Danny husky ang boses nya ala Renz Verano :D :D :D :D
parang kaboses ni Ricah....:D
Post by: F. Dandy on Apr 27, 2016 at 12:56 PM
Quote from: link=topic=204513.msg2352448#msg2352448 date=1451798690
Sana marinig namin yan kahit sa You tube man lang. Pra may idea kami.
Iyan na po, sa YouKu nga lang at di sa youtube :D :D
some sample video of DNY40W in action paired with the diy tone control too.
http://v.youku.com/v_show/id_XMTU0NjkyNDM0MA==.html (http://v.youku.com/v_show/id_XMTU0NjkyNDM0MA==.html)
http://v.youku.com/v_show/id_XMTU0NjI4MDk3Mg==.html (http://v.youku.com/v_show/id_XMTU0NjI4MDk3Mg==.html)
Thanks Rochie for posting here.
parang kaboses ni Ricah....:D;D ;D ;D ;D Indeed, I got several comment and looking forward ma develop ko din ang video hobby for better presentation :D
Quote from: link=topic=204513.msg2352448#msg2352448 date=1451798690
Bka puwede magpagawa kung kaya ng budget.... :)
budget is not a constrain for this amplifier, its equivalent to 2 times chicken joy at jollibee, it should be fun to diy it or rochie and/or Sir tony can assist in the assembly and testing, were here a anyway!
on the concept was to build it DIY. As i always say, speaking personally, the real fun and self fulfilling is to use the power amplifier that built on the power of your finger tip :)
Post by: tony on Apr 27, 2016 at 05:27 PM
the anti-aikido line amp that i made....para matuloy na rin si rochie...
Post by: nbc on Apr 29, 2016 at 10:09 AM
Guess I have to install WeChat on my phone.
nbc
Sent from my SM-N9208 using Tapatalk
Post by: rochie on Apr 29, 2016 at 10:45 AM
I back read and dont see the price posted.
Guess I have to install WeChat on my phone.
nbc
Sent from my SM-N9208 using Tapatalk
bro PM me if you're interested, but for now only kits(PCB and components) are available.
Post by: F. Dandy on Dec 05, 2016 at 12:30 PM
Its just one of the video to see our Project (proudly philippine made), for those guys looking for the video
https://www.youtube.com/watch?v=8PaWhCTECzc (https://www.youtube.com/watch?v=8PaWhCTECzc)
looking forward, we can also make a better and more interesting project in this forum
The vacuum tube pre-amplifier that used to drive the dny40w project was also posted here, in one of the vacuum tube thread.
PS:
This project was started as a Learning stuff for audio guys who is STARTER with zero technical know how on diy amplifier building, hence, the project called EASY diy AMP---- based on hundreds of diy kit build in the hobbyist and university environment...... it is Repeatable ad Reproducible
Post by: F. Dandy on Dec 08, 2016 at 11:00 AM
https://www.youtube.com/watch?v=U4xVOyClNzs (https://www.youtube.com/watch?v=U4xVOyClNzs)
thanks for subscribing on the dny40wTeam youtube channel
channel link : https://www.youtube.com/channel/UC4o-IyCC1KgeNbLLB2tSUKg
Post by: F. Dandy on Dec 08, 2016 at 11:04 AM
youtubbe video : https://www.youtube.com/watch?v=2rseL9RO45A&t=21s
thanks for subscribing on the dny40wTeam youtube channel
channel link : https://www.youtube.com/channel/UC4o-IyCC1KgeNbLLB2tSUKg
Post by: F. Dandy on Dec 08, 2016 at 11:09 AM
MicroController so we can take advantage of digital era controller such as Wifi, Bluetooth or Multi Controller)
youtube video : https://www.youtube.com/watch?v=U4xVOyClNzs&t=70s
thanks for subscribing on the dny40wTeam youtube channel
channel link : https://www.youtube.com/channel/UC4o-IyCC1KgeNbLLB2tSUKg
Post by: F. Dandy on Jul 25, 2017 at 02:30 PM
Thanks, nandito pa din pdvd.com with no policy changed, and of course youtube.com na nagho-host ng video.
Last year,
na mentioned ko ang design ng Inverted DNY40W our favorite transistorized amplifier, imbes na Inverted configuration lang ang project, I made a new platform for diy Learning with a better circuit playground - the Nathan AMP project
see the intro : https://www.youtube.com/watch?v=q2bRn04VvnY
Nathan AMP caters the DNY40W with Inverted Differential Amplifier, Current Mirror, CCS and VAS. Let the diyers will prove by themselves which one is superior SQ, a NPN differential amp or PNP differential amp. This has been a debatable in some audio forum.
I extended the Nathan Amp from its modest power of 40Wrms/channel into 100Wrms/channel with the Nathan AMP Baby, here is the rushed video from the prototype :
https://www.youtube.com/watch?v=yUy-_8m32dI&t=39s
Salamat, and if you like it, thanks to subscribe :)