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ACA V1.5 Illustrated Build Guide
ACA V1.5 Illustrated Build Guide
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Old 1st April 2018, 08:36 AM   #21
baggerbole is offline baggerbole  Germany
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ACA V1.5 Illustrated Build Guide
You are producing fantastic photos. What kind of equipment do you use? Especially for illumination?
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Old 1st April 2018, 05:06 PM   #22
chrisb is offline chrisb
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Jim - since you earlier offered a female name, may I include Morena?
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Old 1st April 2018, 05:29 PM   #23
Nelson Pass is offline Nelson Pass  United States
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ACA V1.5 Illustrated Build Guide
Quote:
Originally Posted by chrisb View Post
Since you mentioned monoblock coversion a few posts back, how soon before you’ll have some photos and notes / cautions for the process? I know a couple of guys who’d be interested.

And since we’re at it, addition of B1 buffer and volume pot to formulate a sorta “integrated” amp?
I have been asked by management to make some comments on the
bridged arrangement and performance, which I will do in a couple days.

Also, there will be some comment about the 24V switching supply.

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Old 1st April 2018, 09:41 PM   #24
chrisb is offline chrisb
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Thanks in advance for that, as well as all you’ve contributed to and inspired the DIY community with - you’re a blessing to us all.
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Old 2nd April 2018, 01:20 AM   #25
Jason is offline Jason  Australia
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ACA V1.5 Illustrated Build Guide
Quote:
Originally Posted by 6L6 View Post
It’s marked 1.1 on the schematic and the PCB, so I went with that. I was thinking about calling it Amp Camp Amp (2018) or something like that, however the boards are marked 2017...

Instead, maybe we should call it George. Or Simon. Or perhaps Annabelle.
Internally Mark and I were calling it ACA V1.5 because it wasn't a full redesign just an incremental upgrade. The final PCB from Nelson Pass has 1.1 on it. So actually I think we'll be renaming this one V1.1 to match the PCB.
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Old 2nd April 2018, 03:03 PM   #26
exw9 is offline exw9  United States
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Hopefully i am not just being blind, but I am having trouble finding the version 1.1 schematic you mention printing out in post #2. I wish my kit had come with it but it did not. I only have a screenshot from the video at burning amp 2017. Do you have a link?
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Old 2nd April 2018, 05:33 PM   #27
planet10 is offline planet10  Canada
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ACA V1.5 Illustrated Build Guide
ACA V1.5 Illustrated Build Guide-aca1v1a-map-png

dave
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File Type: png ACA1v1a-map.png (65.0 KB, 2376 views)
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Old 2nd April 2018, 05:48 PM   #28
exw9 is offline exw9  United States
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awesome, thanks! i also made this table, maybe it will also be helpful:


R2 .47 3W
R3 .68 3W
R4 .68 3W
R5 100
R6 100
R7 10k
R8 1K
R9 1K
R10 332K
R11 10K
R12 39.2K
R13 10k
R14 1K
R15 2.21k
C1 3300
C2 1000
C3 10
C4 10
Q1 IRFP240
Q2 IRFP240
Q3 ZTX450
Q4 2SK170
P1 5K

Last edited by exw9; 2nd April 2018 at 05:54 PM.
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Old 2nd April 2018, 05:54 PM   #29
6L6 is offline 6L6  United States
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ACA V1.5 Illustrated Build Guide
exw9 - That looks great! Thank you!!!

planet10 (Dave) - Yes, perfect. Thanks!!
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Old 2nd April 2018, 07:11 PM   #30
SRMcGee is offline SRMcGee  United States
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ACA V1.5 Illustrated Build Guide
Jim and NP:

I am particularly interested in daisy-chaining two or three ACA pcbs together (a la F5T V3); is that possible (albeit in a different chassis)?

Regards,
Scott
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