Sunday 1 March 2020

Lyra 8 build - part 2

Part two of the Lyra 8 Build
Part 1 can be found here:
 + Lyra 8 build - part 1 

Part 3 is here
https://djjondent.blogspot.com/2020/03/lyra-build-part-3.html

Finally getting around to finishing the build of the Soma Labs Lyra 8
My apologies for the delay.

This is where I left off:
 mANY thanks to Gareth of Oscillosaurus for supplying the faceplate.




The SMD ICs


with SMD ICs if there isn't a dot or a notch, then the pin-1 side will be beveled



For more info about IC orientation click here:
+ Integrated circuits - packaging 

Capacitors
The BOM uses unfamilar units
1m = 1uF




tHE cathode (-ve) corresponds with the black line



Using 25mm standoffs



The face plate must be non conductive .
That way, the PCB can sit flush against the faceplate.



tHE Pots

*there are 10 x  c100k mono pots ant log curve.for the 8 tunes & hyper LFO A & B






*There are 4 stereo C100k, anti log curve
Used in the 4 MOD pots





*there are 4 A100K stereo log curve pots
These are dual
These are used in the four sharp knobs



* three A100K , mono log
Time 1, Time 2 (Mod Delay) , Drive (distortion)



* five A50k mono log
 two holds, two mods, and volume.



* five B50K, mono linear
FB, Mix (mod delay), MIX distortion, Pitch x 2

The Switches
MTS 202
MTS 203
MTS 103
MTS 102


MTS 202
2 pole DPDT , on - on
 Used on 34->56 and the fast switches.
There are 5 of these.




MTS 203
ON OFF ON DPDT. 6P
There are 4 of these


MTS 102
ON-ON , SPDT
There are 5 of these.

 
MTS-103
 ON-OFF-ON , SPDT
 Just one needed.


+ Lyra 8 build - part 1 

 + Lyra 8 Part 3 is here

+ Part 4: Making the Lyra Panel face plate

Links
+ Muffs
+ Integrated circuits - packaging

To be continued......................................

3 comments:

  1. im new to soldering i want ask the pots have a prominent part how to flat with the pcb board?

    ReplyDelete
  2. thanks for bevel tip on ic’s,did turn them around,but they seem to be working☺️

    ReplyDelete
  3. best detailed build i came across so far🤙

    ReplyDelete