UGS-muse preamp GB

[analog_sa]

Is it possible to post a link to the spreadsheet please?

 

[Eric06]

@analog_sa, if you haven't already subscribed, GB is closed but all infos are located on the HCFR forum (check 1st post and navigate from this point - you need to create an HCFR account to access the member's only page).

 

[Eric06]

Updates made.

Link to the BOMs:
- carte MCU / MCU board Rev:1.0
- carte preamp / preamp board Rev:1.1 NEW- order x2
- carte alim logique / logic supply board Rev:1.2 NEW
- carte alim primaire / primary supply board Rev:1.2 NEW
- module UGS / UGS module Rev:1.0 - order x2
- carte sub / sub board Rev:1.0
- carte trigger / trigger board Rev:1.0
- carte XLR/RCA / XLR/RCA board Rev:1.0 - order x2

 

[Algar_emi]

I received my board kit and the MUSE IC today. Thanks again Alex & Eric

 

[Eric06]

Great. Enjoy.

For information, I proceed yesterday to another batch of shipments.
I haven't yet sent out the tracking numbers - will do today.

And last, I made a typo correction + corrected a missing link on the preamp BOM yesterday - link to the BOM is unchanged.
The corrected preamp BOM will show as rev 1.1a in the header title - so download again if you don't have this version.

 

[CeeVee]

Hi Eric,

Got my PCBs today...they look gorgeous....going to concentrate now on the uC board as i have preamp PCBs already populated and tested from original build ( François' build )

The rest is easy compared to the SMD soldering and testing on the uC PCB.

Now i need the uC code and source to taylor to my needs ...

Thanks for a really fantastic upgrade of a already gorgeous preamp that has given me many hours of music heaven over the years.

Pass / Malza switch positions ????

C

 

[Eric06]

Thanks for the appreciation. Alex deserves all the credits.

If you are using Francois'build put the switches in the "PASS" position.
PASS/Malza refers to two different front panels (from HCFR GB) - the buttons on the Malza version are located slightly above the PASS version hence the 2 possible positions in the PCB controller.

Alex still need to publish the .dfu firmware (he wants to test the VFD version by himself before sending it out).

 

[Eric06]

By the way, last shipments went out today.
Only exceptions are Strangelove72 whom did not provide his address.

 

[Dennis Hui]

Thank you to both Eric and Alex for making this possible.

Cheers,
Dennis

 

[Alex_twn]

Good to hear that you like the design, we spent quite some time on this, several late evenings .
I will post a beta MCU binary on HCFR asap. 100% functional to use the preamp HW but with still few features miss that I have in mind.

 

[aspringv]

I'm eagerly awaiting delivery.

Thanks!

 

[CeeVee]

Good to hear that you like the design, we spent quite some time on this, several late evenings .
I will post a beta MCU binary on HCFR asap. 100% functional to use the preamp HW but with still few features miss that I have in mind.

Fantastic work Alex, quality of the work on the PCBs is outstanding!!!...thanks for this "pre-release " binary...it will let me test the board.

I have yet to choose what display i will be using but will probably test both VFD and Oleds.

 

[Alex_twn]

Thanks for your compliments, this is the first pcb I am doing so I am pleased to hear this .
Binary will work with both displays, there is just a dispsel configuration to do to select the proper display with solder bridges.
I don't recall what I implemented in the fw, I need to document those configurations.

 

[Alex_twn]

I'm eagerly awaiting delivery.

Thanks!

It has been shipped, you should receive it very soon

 

[Alex_twn]

I just re-checked my code, so for the details here in English.

Control board, please set DSEL[1:0] = 3 (default) for the OLED configuration and please set DSEL[1:0] = 1 (close DSEL1) for the VFD configuration.
Then for the preamp board please set the left board with A[2:0] = 0 and the right board with ADR[2:0] = 1
Also please close R38 to R43 unless you use an opamp module on M1.

 

[CeeVee]

Thanks Alex.

C

 

[Eric06]

I just re-checked my code, so for the details here in English.

Control board, please set DSEL[1:0] = 3 (default) for the OLED configuration and please set DSEL[1:0] = 1 (close DSEL1) for the VFD configuration.
Then for the preamp board please set the left board with A[2:0] = 0 and the right board with ADR[2:0] = 1
Also please close R38 to R43 unless you use an opamp module on M1.

In case of, this is also indicated within the BOM.

 

[Eric06]

New BOM version for the MCU board : Add 2 missing 4.7K resistors + provide few optical encoder examples in function of shaft diameter and end style.

Link to the latest BOMs:
- carte MCU / MCU board Rev:1.1 NEW
- carte preamp / preamp board Rev:1.1a - to order x2
- carte alim logique / logic supply board Rev:1.2
- carte alim primaire / primary supply board Rev:1.2
- module UGS / UGS module Rev:1.0 - to order x2
- carte sub / sub board Rev:1.0
- carte trigger / trigger board Rev:1.0
- carte XLR/RCA / XLR/RCA board Rev:1.0 - to order x2

Please send me a notification once you have received your parcel (after verification of course). Thanks.
By the way, tracking number have been sent to every one by private message on the HCFR forum.

 

[Ine]

Hello,

Which display is the best ? I mean, most readable from a distance ?

 

[Alex_twn]

Well both displays have their pro/cons and this is why I implemented 3 different kinds to let people decide the one they preferred.
VFD is bright but has graphic limitations, OLED on the other hand allow bitmap drawing and a good contrast, on the top of this I started to port a new graphic lib that allows very large fonts so that can be seen from a distance and since we have 2 OLEDs, having big font is not an issue to display everything.