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 Post subject: Re: Pass ACA Builds
PostPosted: Sun Sep 13, 2015 6:44 am 
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Joined: Fri Jul 04, 2014 8:37 pm
Posts: 340
Location: Toronto, ON, CA
Clean up PCB with Isopropyl alcohol - bought from local Pharma Plus store.
-Use a little brush, e.g. tooth brush, clean PCB with alcohol;
-Wash off alcohol and other residual with water and brush...;
-If one above clean & wash is not enough, dump used alcohol and use clean alcohol repeat above 2 steps
-Wash & clean, don't soak PCB and parts in alcohol


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 Post subject: Re: Pass ACA Builds
PostPosted: Sun Sep 13, 2015 8:01 am 
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Joined: Thu Jan 01, 2015 3:40 pm
Posts: 327
Location: bowmanville, ON, CA
Youre a hell of a good builder. Just from the look and attention to detail its clear that your builds are of the highest quality. Someday im gonna have to contract you to do a 2 channel for me lol


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 Post subject: Re: Pass ACA Builds
PostPosted: Sun Sep 13, 2015 5:57 pm 
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Joined: Fri Jul 04, 2014 8:37 pm
Posts: 340
Location: Toronto, ON, CA
BKSRT8 wrote:
Youre a hell of a good builder. Just from the look and attention to detail its clear that your builds are of the highest quality. Someday im gonna have to contract you to do a 2 channel for me lol


Thanks Bksrt8, I believe you are a good builder yourself;-)

After some DIY projects, things will become natural, such as where to use higher soldering temperature, and where to use low/normal temperature, it's just a matter of experience.


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 Post subject: Re: Pass ACA Builds
PostPosted: Sun Sep 20, 2015 11:08 am 
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Joined: Fri Jul 04, 2014 8:37 pm
Posts: 340
Location: Toronto, ON, CA
Got the chassis, and made some progress today...
-Position PCB on sink to drill the holes for supporting PCB, then tapping...;
-Mount PCB, and then position IRFP240;
-Drill the holes and tapping for IRFP240 holes;
-Assemble PCB to sink, Put in IRFP240, tighten all screws...and then solder them to PCB...


Attachments:
001_PositionPCB.jpg
001_PositionPCB.jpg [ 182.63 KiB | Viewed 1751 times ]
002_PcbHoles.jpg
002_PcbHoles.jpg [ 111.2 KiB | Viewed 1751 times ]
003_.jpg
003_.jpg [ 136.49 KiB | Viewed 1751 times ]
004_PositionIRFP240.jpg
004_PositionIRFP240.jpg [ 187.79 KiB | Viewed 1751 times ]
005_IRFP240.jpg
005_IRFP240.jpg [ 189.63 KiB | Viewed 1751 times ]
006_Soldered.jpg
006_Soldered.jpg [ 149 KiB | Viewed 1751 times ]
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 Post subject: Re: Pass ACA Builds
PostPosted: Sun Sep 20, 2015 11:18 am 
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Joined: Wed Aug 08, 2012 4:17 pm
Posts: 2783
Location: Winnipeg, MB, CA
Very nice, would like a couple mono blocks for myself.
I can make soup. No solder involved though I have used gold flake in a Consommé.


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 Post subject: Re: Pass ACA Builds
PostPosted: Sun Sep 20, 2015 4:39 pm 
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Joined: Fri Jul 04, 2014 8:37 pm
Posts: 340
Location: Toronto, ON, CA
Give ACA another Isopropyl alcohol bath after soldering IRFP240, will left them lying there for a couple of days to dry naturally...
The rest are wiring, final assembly, power up and adjusting ...

-- 21 Sep 2015 00:41 --

mpublicover wrote:
Very nice, would like a couple mono blocks for myself.
I can make soup. No solder involved though I have used gold flake in a Consommé.


You know what, sometimes I feel DIY is kind of like cooking, use some of this, some of that....next time change some ingredients to see if can get another "flavor"... :)


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 Post subject: Re: Pass ACA Builds
PostPosted: Sun Sep 20, 2015 7:18 pm 
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Joined: Fri Oct 16, 2009 7:42 am
Posts: 1413
Location: Toronto, ON, CA
whats your impression of the ACA vs some of the other amps you've built or heard?
What speakers do you use a 5W set on?

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 Post subject: Re: Pass ACA Builds
PostPosted: Mon Sep 21, 2015 5:22 am 
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Posts: 340
Location: Toronto, ON, CA
dazed2 wrote:
whats your impression of the ACA vs some of the other amps you've built or heard?
What speakers do you use a 5W set on?


I use ACA to drive DIY Zaph SR71, 85dB 2-way bookshelf speaker, for desktop close range listening...some of my friends use it to drive even bigger speakers

ACA is warm sound, a bit like tube amp...


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 Post subject: Re: Pass ACA Builds
PostPosted: Sat Oct 03, 2015 6:52 pm 
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Joined: Fri Jul 04, 2014 8:37 pm
Posts: 340
Location: Toronto, ON, CA
Powered up, adjust bias...

Drilled LED holes on front panel, washed front panel with Isopropyl alcohol to remove any grease and dirty stuff...apply metal sticker to honour Ms. N. Pass


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R_Channel.JPG
R_Channel.JPG [ 122.16 KiB | Viewed 1603 times ]
PowerWired.JPG
PowerWired.JPG [ 113.83 KiB | Viewed 1603 times ]
Labeled.JPG
Labeled.JPG [ 353.98 KiB | Viewed 1603 times ]
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 Post subject: Re: Pass ACA Builds
PostPosted: Wed Oct 07, 2015 7:45 am 
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Joined: Wed Jan 10, 2007 11:03 am
Posts: 175
Location: Bath, ON, CA
Frank Wang wrote:
dazed2 wrote:
whats your impression of the ACA vs some of the other amps you've built or heard?
What speakers do you use a 5W set on?


I use ACA to drive DIY Zaph SR71, 85dB 2-way bookshelf speaker, for desktop close range listening...some of my friends use it to drive even bigger speakers

ACA is warm sound, a bit like tube amp...


My "Frankbuilt ACA Monoblocks" drive the Visaton B200's in my open baffle setup. This sounds very fine to my taste.....classical music at reasonable levels in a medium sized room.


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 Post subject: Re: Pass ACA Builds
PostPosted: Thu Oct 08, 2015 5:13 am 
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Joined: Fri Jul 04, 2014 8:37 pm
Posts: 340
Location: Toronto, ON, CA
palladio wrote:
Frank Wang wrote:
dazed2 wrote:
whats your impression of the ACA vs some of the other amps you've built or heard?
What speakers do you use a 5W set on?


I use ACA to drive DIY Zaph SR71, 85dB 2-way bookshelf speaker, for desktop close range listening...some of my friends use it to drive even bigger speakers

ACA is warm sound, a bit like tube amp...


My "Frankbuilt ACA Monoblocks" drive the Visaton B200's in my open baffle setup. This sounds very fine to my taste.....classical music at reasonable levels in a medium sized room.



oops, busted ... :)

A new frame for you OB?


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 Post subject: Re: Pass ACA Builds
PostPosted: Thu Oct 08, 2015 6:54 am 
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Joined: Wed Jan 10, 2007 11:03 am
Posts: 175
Location: Bath, ON, CA
Yes....simplifies the whole setup. Single Eminence Alpha 15 no tweeter. Visaton running full range.

As soon as I get the basement bathroom/laundry room done i will start your TG Seas 3-Way classic..... :)


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 Post subject: Re: Pass ACA Builds
PostPosted: Thu Oct 08, 2015 5:17 pm 
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Joined: Fri Jul 04, 2014 8:37 pm
Posts: 340
Location: Toronto, ON, CA
palladio wrote:
Yes....simplifies the whole setup. Single Eminence Alpha 15 no tweeter. Visaton running full range.

As soon as I get the basement bathroom/laundry room done i will start your TG Seas 3-Way classic..... :)


No rush, my friend...love your wood stain color of the new OB;-)


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 Post subject: Re: Pass ACA Builds
PostPosted: Tue Oct 20, 2015 6:51 pm 
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Joined: Fri Jul 04, 2014 8:37 pm
Posts: 340
Location: Toronto, ON, CA
Done...

-- 21 Oct 2015 03:05 --

This should be the last ACA I will build this year...need play something else;-)


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Running.jpg
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 Post subject: Re: Pass ACA Builds
PostPosted: Tue Oct 20, 2015 7:10 pm 
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Joined: Sat Dec 18, 2010 7:02 am
Posts: 649
Location: Toronto, ON, CA
I just replace two chips in a phono pre and i found that to be a pain in the butt.

Nice work.

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