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Old 17th February 2013, 08:40 PM   #51
DQ828 is offline DQ828  Australia
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Quote:
Originally Posted by Crom View Post
Just saw your version 5...looking good ;-)

I noticed one thing missing on the wiring of the shunt to the tube-i-zator board. Shouldn't the return wire be connected to both sides of the audio out put stage (basically, the next pcb-hole to the left of where you have your return connection coming back from the shunt)?
The wiring got the tick of approval from Oliver so I assume it is ok. Tube-I-zator Professional PCB
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Old 18th February 2013, 06:25 PM   #52
Crom is offline Crom  United Kingdom
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Quote:
Originally Posted by DQ828 View Post
The wiring got the tick of approval from Oliver
Yeah, I saw that and I will be happy - and apologetic ;-) - if proved wrong but I do think it's worth another look. With the wiring as it is shown in your diagram, I can't see how the second valve receives any voltage. In other words, as I see it, we have to apply the return from the shunt to both points TB1 and TB2...not just one or the other. You currently have voltage going to TB2 which will supply the valve to the right of your diagram but I can't see how it would get to the other valve.

As I say, I'm only re-learning, having not built anything electronic in about 20 years, and I'm willing to learn and be told why I'm wrong...just trying to help.
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Old 23rd February 2013, 09:07 AM   #53
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Getting there slowly, I have made all of the custom bits & pieces, but it may not be until next weekend before I get to put the rest of the bits on the board. I'm also building a bedside table & starting a Sub for the son's birthday which isn't far away, too many things to do so little time
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File Type: jpg 13-02-23 DAC 201.JPG (778.9 KB, 322 views)
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Old 23rd February 2013, 08:31 PM   #54
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Nice work David!

As you may recall I use a Sidecar and added an OTTO II to switch between my Denon I2S and Amanero USB to I2S module inputs. I am using HiFiDuino/Corpius modified code. Setting I2S for the input selection pulls Sidecar HIGH.

The problem I had was the OTTO II would remain switched to input 2 when connected to the Arduino whether pin HIGH or LOW. When the Arduino UNO pins are set LOW, pin 7 had .009v DC. So does pin 6, etc. (Kind of surprised OTTO will switch with that low a voltage). To fix I made a relay board; now zero volts to S on OTTO when Arduino pin pulled LOW.

I added code to the input to switch OTTO HIGH for my Denon and LOW for my USB module. Worked great as long as I went clockwise with encoder or remote. If I went CCW, the OTTO relay would remain HIGH. This is what I did to fix it; add digitalWrite(OTTOPIN, LOW); to all other menu selections. Now I can go in either direction wih source selection and it works properly. You may have to do this too.

This code is located under:

void setAndPrintInput(byte value)

case 0:
digitalWrite(OTTOPIN, HIGH); //Switch OTTO HIGH to select the Denon. LOW for USB
lcd.print(no0);
break;
case 1:
digitalWrite(OTTOPIN, LOW);
lcd.print(no1);
break;
case 2:
digitalWrite(OTTOPIN, LOW);
lcd.print(no2);
break;
case 3:
digitalWrite(OTTOPIN, LOW);
lcd.print(no3);
break;
case 4:
digitalWrite(OTTOPIN, LOW);
lcd.print(no4);
break;
case 5:
digitalWrite(OTTOPIN, LOW);
lcd.print(no5);
break;
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File Type: jpg relay.jpg (195.3 KB, 295 views)

Last edited by SCompRacer; 23rd February 2013 at 08:33 PM.
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Old 23rd February 2013, 10:05 PM   #55
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I am pretty code challenged so it just hit me....I could have just added a LOW command to either side of the Denon input. Denon is case 0 so just add LOW command to case 1 and case 5.
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Old 24th February 2013, 08:41 AM   #56
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Good things come to those that wait

I'm sure my code is riddled with things like that.
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Old 2nd March 2013, 10:16 AM   #57
DQ828 is offline DQ828  Australia
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Getting closer all the time. The first TP/Arduino DAC that I build sort of evolved over time, where this one is straight to the end game, well almost. What are the chances of it all working first go Slim I'd imagine.
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File Type: jpg 13-03-02 DQ DAC 201_3.JPG (866.7 KB, 256 views)
File Type: jpg 13-03-02 DQ DAC 201_2.JPG (630.4 KB, 242 views)
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Old 3rd March 2013, 06:38 AM   #58
DQ828 is offline DQ828  Australia
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I'm seriously over soldering, not much to do now, connect the larger transformer, one more SPDIF input and the Mute & Lock LED, then test everything before I fire it up.
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File Type: jpg 13-03-03 DQ DAC 201_2.jpg (267.5 KB, 120 views)
File Type: jpg 13-03-03 DQ DAC 201.jpg (294.4 KB, 96 views)
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Old 3rd March 2013, 07:04 AM   #59
DQ828 is offline DQ828  Australia
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I stumbled on these video's re soldering, I learn't a few things in the process, but if nothing else it's worth seeing what modern technology meant in 1980

PACE Worldwide's channel - YouTube
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Old 3rd March 2013, 10:49 AM   #60
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Stayed up late & got it done.
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File Type: jpg 13-03-03 DQ DAC 201_5.jpg (268.2 KB, 127 views)
File Type: jpg 13-03-03 DQ DAC 201_4.jpg (238.0 KB, 125 views)
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