Pictures of your diy Pass amplifier

Mini Aleph, designed by Mr. Erdal Turkekul. Its working with 19v dual smps. Simple, compact and inexpensive. But its sound is not.
 

Attachments

  • VID-20230525-WA0010.mp4
    6.5 MB
  • IMG-20230525-WA0007.jpg
    IMG-20230525-WA0007.jpg
    260.4 KB · Views: 403
  • IMG-20230523-WA0009.jpg
    IMG-20230523-WA0009.jpg
    334.1 KB · Views: 401
  • Like
Reactions: 3 users
Member
Joined 2008
Paid Member
I spent several days testing out my latest build (very nice transformer-coupled input class-d amps) to find a nice balance of energy consumption and heat versus sound quality during warmer weather months and was quite pleased.

However, I just switched back to my most recent class A build (F5 with 2SK1530 / 2SJ201), and am convinced that I am a class A diva. Oh my, it just sounds so enveloping and lush. All you Pass sub-forum nerds know what I’m talking about. We love it.

And with new projects on the way, there is no end in sight to this hedonistic audio indulgent exploration. Humongous thanks to Nelson and the other giants in this forum for keeping us interested and experimenting. Big fun.
 

Attachments

  • IMG_0578.jpeg
    IMG_0578.jpeg
    462 KB · Views: 259
  • Like
Reactions: 7 users
Member
Joined 2008
Paid Member
I’d say the difference is between being in the recording booth listening to musicians versus Matthew Correia of the Allah-Las hitting the ride cymbal IN MY LIVING ROOM IN FRONT OF ME.

Vive le classe A.

Life is short. If you have the means, burn kWh for always-on amplifier transistors. :cool:
 
  • Like
Reactions: 1 users
My new project the tiny Amp Camp Amp. powered by linear PSU in seperate chassis. PCB is my design to allow bigger part. I change input coupling cap from original design electrolytic to Film cap.
It sing wonderfully.

Cheer.
 

Attachments

  • 350509285_526417612870048_2901276422269825900_n.jpg
    350509285_526417612870048_2901276422269825900_n.jpg
    686.6 KB · Views: 334
  • 350659067_159100773804301_3083468629435295979_n.jpg
    350659067_159100773804301_3083468629435295979_n.jpg
    725 KB · Views: 321
  • 350525272_763866612190601_5467656894259369517_n.jpg
    350525272_763866612190601_5467656894259369517_n.jpg
    297.7 KB · Views: 314
  • 350658575_1594264731050070_9052727570477556263_n.jpg
    350658575_1594264731050070_9052727570477556263_n.jpg
    470.7 KB · Views: 296
  • 350295029_574165084610817_4025333769811683691_n.jpg
    350295029_574165084610817_4025333769811683691_n.jpg
    572.6 KB · Views: 327
  • 350658906_945745649964333_4397662294903461789_n.jpg
    350658906_945745649964333_4397662294903461789_n.jpg
    535.1 KB · Views: 338
  • 350521029_546903844317613_6597191004267765675_n.jpg
    350521029_546903844317613_6597191004267765675_n.jpg
    392.9 KB · Views: 326
  • 350512311_3512764955658063_6365930120650595820_n.jpg
    350512311_3512764955658063_6365930120650595820_n.jpg
    570.3 KB · Views: 316
  • 350642768_260153009895409_5276612958050769502_n.jpg
    350642768_260153009895409_5276612958050769502_n.jpg
    196.1 KB · Views: 298
  • 350534698_1943114729377391_5628632414554765942_n.jpg
    350534698_1943114729377391_5628632414554765942_n.jpg
    258.8 KB · Views: 292
  • 350287162_785943916255642_559524241698265246_n.jpg
    350287162_785943916255642_559524241698265246_n.jpg
    301.8 KB · Views: 272
  • 350524462_244422781611776_8488140316961036223_n.jpg
    350524462_244422781611776_8488140316961036223_n.jpg
    355.5 KB · Views: 325
  • Like
Reactions: 19 users
Okey that sounds good, remember that you will need both warm air outlets and cold air inlets in order to get a properly working cooling solution. As you know, warm air rises.

On really hot summer days, if you maby finds that the amlifier temp gets a little bit to high, you could even tilt the amp on its side, to get the chimney effect between the heatsinks when the hot air rises: Extra cooling power.

☀️🙂👍
 
  • Like
Reactions: 1 users
Yea, but facts simply are facts. All over the globe. 🙂👍

The science and the physics at work when in comes to amplifier cooling is exactly the same in the Land Of The Vikings as in Thailand.

🎷😎☀️🎸
That much is true! In fact, convection is improved by proper placement when dealing with 2 Mosfets. All my Class A and AB builds have implemented that to great effect.

But it’s funny nonetheless!

Best,
Anand.
 
Hi.I will build class A pass amplifiers like F5 and Aleph J but i need cnc cad files for top and bottom plates which have ventilation holes.I want to make different size nice enclosures.Does anyone have some files and can share? Anodising company cuts 1000x2000mm 2mm thick aluminium sheet but need some files.Any help will be highly appriciated.Thanks in advance.
 
Last edited:
  • Like
Reactions: 1 user
Member
Joined 2008
Paid Member
I added local capacitance and proper Powercon input connectors to my Amp+PowerSupply combo. Still gotta terminate the load end of my umbilical cables, but I’ve run out of steam for tonight. Time for a picture and sleep. :snail:
 

Attachments

  • IMG_0628.jpeg
    IMG_0628.jpeg
    624.3 KB · Views: 300
  • IMG_0626.jpeg
    IMG_0626.jpeg
    628.1 KB · Views: 308
  • Like
Reactions: 6 users