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
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......................................
im new to soldering i want ask the pots have a prominent part how to flat with the pcb board?
ReplyDeletethanks for bevel tip on ic’s,did turn them around,but they seem to be working☺️
ReplyDeletebest detailed build i came across so far🤙
ReplyDelete