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GB for R2R audio volume / input selection pcb

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#21
CustomHT said:
Would it be possible to use this board and setup one of the inputs (preferably balanced) with a home theater bypass? So for the volume control does not effect that input and it just pass's it through?
Is that possible with some modifications?
Click to expand...

Yes, one bypass (direct) input is already included.
Schematic is available at :: vicol audio :: >> Products >> DanZup R-2R/shunt volume controller

Regards,
Tibi
 
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#25
I had a look on the google-doc.
But there are some questions left:

  • what are the advantages/disadvantages of shunt/r-2r version. Which is better? Where I can find information concerning the differences between the 2 principles?
  • is the ATMEL programmed and can I use the same ATMEL/program and pcbs for LED and LCD?
  • what is enclosed in one kit?
  • were ther any estimated prices given?
  • who I have to inform which kit number etc. I want to order?

I hope I haven´t missed the point while reading the thread.

Marcel
 
#26
400 said:
I had a look on the google-doc.
But there are some questions left:


[*]what are the advantages/disadvantages of shunt/r-2r version. Which is better? Where I can find information concerning the differences between the 2 principles?
Click to expand...

Here are two links which will explain you, in detail, all advantages/disadvantages of different resistor networks topologies.
Attenuator Kit Installation
Resistor-Switch Attenuator Networks for Audio Volume Control

400 said:
[*]is the ATMEL programmed and can I use the same ATMEL/program and pcbs for LED and LCD?
Click to expand...

Atmel is programmed to support LED or LCD, but not both in the same time, as there is no enough space on flash memory.

400 said:
[*]what is enclosed in one kit?
Click to expand...

PCB and all components.

400 said:
[*]were ther any estimated prices given?
Click to expand...

We are going for full kit only if 100 pcb's will be ordered.
Estimated price / pcb is 12 euro.
On other hand, will provide full BOM with links to Elementy i podzespo?y cz??ci elektroniczne - TME - Electronic Components , so you can just click and add to your shopping basket all the components. I think is more fair like this.

400 said:
[*]who I have to inform which kit number etc. I want to order?
[/LIST]

I hope I haven´t missed the point while reading the thread.

Marcel
Click to expand...

Just write here and me, jkraxi or Dan Zup will take care of your order.

Regards,
Tibi
 
#30
COnfirming interest but worried about time to reach 100 PCB

Hi again,

I just want to confirm that I am still interested in balanced version, but I am really concerned about the time necessary to reach to 100 PCB.

Furthermore I don't understand the lack of interest in the volume control..might be missing something.

Cheers,

Max
 
#37
We are going to put in production a small number of PCB´s.
All boards will come with controller ready programmed up to your needs.
Will let you know exact price after we get factory offer.

The BOM is already available on vicol-audio.ro and will be revised, so you can click and shop your needed components in order to complete the kit.

Regards,
Tibi
 
#38
Hi, tvicol

I am interested in these pcbs (depending on the price).
Is it correct that the r-2r version = ladder type?
If so, I would take a complete kit for r-2r-version for balanced stereo amp and an additional relay board for switching digital sources.

Regards,
Marcel
 
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