For everyone's information:
The first test (SE version) was positive. The relays switch accordingly.
There is still a small error when switching the inputs. The volume goes to zero, but the signal is audible again for a very short time before the channel is switched off.
I also noticed that the power relay is always used. The transformer of the Iron Pre has to be switched on and off.For everyone's information:
Dies muss ich ebenfalls noch einrichten.
The symmetrical variant will be tested in the course of this week.
The new boards have already been delivered. There will be pictures of them after they have been assembled. I will then also update the website.
The first test (SE version) was positive. The relays switch accordingly.
There is still a small error when switching the inputs. The volume goes to zero, but the signal is audible again for a very short time before the channel is switched off.
I also noticed that the power relay is always used. The transformer of the Iron Pre has to be switched on and off.For everyone's information:
Dies muss ich ebenfalls noch einrichten.
The symmetrical variant will be tested in the course of this week.
The new boards have already been delivered. There will be pictures of them after they have been assembled. I will then also update the website.
Absolutely no rush, Frank. I'm not even in possession of my boards yet so when the dust settles on the final design we'll go from there. Are you using I2C (two wire) or 3-wire SPI?
The SE-Version works now flawless.
Since the Balanced version differs only in the way it addresses the Muses chips, I assume that it also works perfectly.
I have updated the website. The description of the individual sets with price list are now online. These sets can be ordered now. However, it will take me a few days to put them together. Depending on the volume, parts or even circuit boards still have to be reordered.
Since the Balanced version differs only in the way it addresses the Muses chips, I assume that it also works perfectly.
I have updated the website. The description of the individual sets with price list are now online. These sets can be ordered now. However, it will take me a few days to put them together. Depending on the volume, parts or even circuit boards still have to be reordered.
Very good Frank, order placed! Awaiting delivery like a kid before Christmas, I am ready to mount it from November 6th 🙃
I assume per the website that there is no soldering for the Muses board or the MC board. I believe those come as pre-assembled units. Maybe if you need a 2nd PSU for the MC board, you might need to solder a few pins.
There are detailed instructions shown for how to connect the boards to the Iron Pre, which includes soldering.
There are detailed instructions shown for how to connect the boards to the Iron Pre, which includes soldering.
Gianluca,
Can you consider offering alternative versions of the Iron Pre chassis with modified front panels to accommodate the display used in Frank Wilker's Muses volume control solution?
I think there may be several members interested in integrating your chassis with Frank Wilker's solution.
Guys, if you're interested, let Gianluca know.
Can you consider offering alternative versions of the Iron Pre chassis with modified front panels to accommodate the display used in Frank Wilker's Muses volume control solution?
I think there may be several members interested in integrating your chassis with Frank Wilker's solution.
Guys, if you're interested, let Gianluca know.
I have already been in contact with Gianluca.
I had asked if the Iron Pre case could also be delivered without a front panel, as I will be offering glass fronts with a glued-in display myself.
He offered a small discount. This must be specified when ordering.
A front panel with a corresponding cut-out for the display would of course be the best solution.
@Gianluca: Thank you for the discount and your help.
I had asked if the Iron Pre case could also be delivered without a front panel, as I will be offering glass fronts with a glued-in display myself.
He offered a small discount. This must be specified when ordering.
A front panel with a corresponding cut-out for the display would of course be the best solution.
@Gianluca: Thank you for the discount and your help.
Hello everybody,
Of course, no problem in modifying the front panel and adding a cut-out for the display as suggested by Frank.
If needed, I can send you the original file for this panel. Feel free to add what you need.
Gianluca
Of course, no problem in modifying the front panel and adding a cut-out for the display as suggested by Frank.
If needed, I can send you the original file for this panel. Feel free to add what you need.
Gianluca
Hi together,
Unfortunately, there are problems with addressing the Muses chip. I still have to solve this problem. The channel with the higher address simply won't work. This only affects the balanced version.
I am currently working on the problem.
The SE orders will be dispatched tomorrow at the latest.
Unfortunately, there are problems with addressing the Muses chip. I still have to solve this problem. The channel with the higher address simply won't work. This only affects the balanced version.
I am currently working on the problem.
The SE orders will be dispatched tomorrow at the latest.
@Audiobear: I got your mail (both) and answered. Look to your spam, please. the first answer were from frankwilker@web.de.
Hello Frank,
I try and avoid kibitzing when someone is troubleshooting, but my curiosity has gotten the better of me. Do you mean that you can never command the high address board, or only when the low address board is also on the bus?
I try and avoid kibitzing when someone is troubleshooting, but my curiosity has gotten the better of me. Do you mean that you can never command the high address board, or only when the low address board is also on the bus?
Hi Argos,
The chip does not react even though it is alone on the bus. It is also separated by the digital isolator. I have also used this addressing with my stand-alone potentiometers. It works perfectly with two chips and two addresses.
Unfortunately, I have not yet been able to measure the data flow behind the digital isolator. I need an adapter cable for this. I still have to make one. Before the digital isolator, the data measured with a logic analyser, are correct.
As it is a digital device, it will work in the end.
The chip does not react even though it is alone on the bus. It is also separated by the digital isolator. I have also used this addressing with my stand-alone potentiometers. It works perfectly with two chips and two addresses.
Unfortunately, I have not yet been able to measure the data flow behind the digital isolator. I need an adapter cable for this. I still have to make one. Before the digital isolator, the data measured with a logic analyser, are correct.
As it is a digital device, it will work in the end.
Hi together,
I have received the original DXF file (front panel) from Gianluca.
I would rework it so that the display can be used.
You would then only need the cut-out for the display and a hole for the rotary encoder. Alternatively, a hole for the switch. However, this is not really necessary as only the Mean Well is connected to the power supply and this consumes significantly less than 200mW.
Please send me your opinions and suggestions.
Perhaps someone would like to take over the machining of the front panel?
@Analogico: Could you send me a detailed picture from the frontplate as PM? Thanky you
I have received the original DXF file (front panel) from Gianluca.
I would rework it so that the display can be used.
You would then only need the cut-out for the display and a hole for the rotary encoder. Alternatively, a hole for the switch. However, this is not really necessary as only the Mean Well is connected to the power supply and this consumes significantly less than 200mW.
Please send me your opinions and suggestions.
Perhaps someone would like to take over the machining of the front panel?
@Analogico: Could you send me a detailed picture from the frontplate as PM? Thanky you