Optical encoder PCB + spare encoder for Muses 72323 Volume control

[Bensen]

I made a PCB for Bourns EM14 optical encoders.
This board is compatible with the MUSES 72323 volume control made by Meldano on this forum.

One board is fully populated and is working perfectly, I have one spare optical encoder.
Encoder type is: EM14R0D-M20-L064S
I moved from the ALPS to these Bourns Encoders as I had bad luck with the ALPS going bad pretty fast, the feeling when rotating the Bourns is from a much better level as well.
Reason for sale is that I moved from 64 to 32 PPR. 64PPR was about 1 full rotation to get from 0 to full output in my system.


As you will notice on the pictures, a 78L05 is installed to take care of the 5V for the encoder. I'm supplying this board with 12VDC, offcourse 15V is no problem either.
The 3V3 is not needed for this board to function.
The circuit is based on: https://www.diyaudio.com/community/threads/muses-72320-electronic-volume.220792/page-27#post-6419562

Populated board + spare encoder = €50 excl shipping. (this is lower than the price of the 2 encoder together!)



Any body interested? I will only sell both items together.

 

[freebee]

I'm interested

 

[Tarasque]

Would be interested as well

 

[Bensen]

Hello, I recieved multiple reactions. As freebee was first I’m in contact with him.
I will post the gerber files here to support others. Give me a day.

 

[Bensen]

Gerbers of Bourns EM14 adapter board.

 

[Bensen]

SOLD

 

[myleftear]

Ah, sorry for reviving a dead thread, but—do you know if this would work with the older boards/muses 72320?

 

[Bensen]

Had a quick look to the 72320 circuit of Meldano, yes, I don’t see why this shouldn’t work.
I’m still very happy with the Bourns EM14, the Alps is crap compared to the Bourns.

 

[myleftear]

Ah great!
I just started with that project, my first delve into smd…
always on the look for a backup if something’s not good.