and since he was doing a lot of experiment with different types of coils, pendulums, and oscillators, driver design was altered to have more flexibility.


the boards were made by JLC so most of the parts were Basic. that included SMT crystal. but he found THT crystal with better specs. eventually TCXO was also tossed in.

 

and here are other files. extract zip once. inside is another zip (gerbers) which is all that is needed to order PCBs. there are also CSV files (BOM/centroid) if doing PCBA. make sure to confirm correct rotation of parts if submitting design for PCBA. PCBA = PCB assembly (board is partially or fully populated with parts).

numerous variants of this have been made. and while effort was made to ensure no problems, use it at own risk ;-)

if using TCXO instead of simple crystal, MCU will need to use different settings. good luck...

TCXO = temperature controlled crystal oscillator. for indoors temeperatures it should get better stability than crystal.

 

Do you still have the gerber files?

 

Thank you!!!!

 

looks like all parts (other than DNP) are oriented correctly. when they are off purple dot and white arrow on silkscreen need to match (Example U1, Y2, Q1, Q2):


to make board complete, solder JP1 jumper pads 1-2, and solder IC socket, then pit programmed IC in it... LEDs are not onboard since they need to be exposed for tuneup. PSU is optional.

to order PCBA without TCXO simply delete that line from BOM (one in production files) before submitting. capacitors are not populated (on the bottom side) since values will depend on crystal type.

if you are only getting pCBs, beware that U1 pinout is not common. it was chosen for low quiescent current (and being Basic part at JLC). that is why there is option to use U2 instead of it...

 

I have the Gerbers and iBOM, but I'd like to use JLCPCB SMT assembly.

Do you have the KiCad source files or the CPL (Pick-and-Place) file used to generate the board?"

 

One additonal question: Would it be difficult for you to modify the board so accommodate
595-MSP430G2233IN20
MSP430G2233IN20
Mixed Signal MCU
These are 20 pin instead of 14 pin. I have these on hand along with this socket
uxcell 10pcs DIP IC Chip Socket Adaptor 2.54mm Pitch 7.6 Row Pitch 2 Row 20 Round Pins Soldering

 

open ZIP file in post #42,

 

you can simply cut off part of the IC socket using flush cutter....




in many companies doing PCBA, they will get your BOM, then try to do shopping for the parts you specified. this can be time consuming and expensive (labour)
JLC has bunch of stock parts to work with. they are listed along with price, qty available, etc. and if they run out of something, no problem, i will solder it myself when the partially populated boards arrive.
some of the parts are considered Basic. it means they are used all the time so you do not get charged handling fee. if the part is not Basic (for example TCXO, or IC socket...) then for each type of part, there will be $3USD handling fee.

attached is design so you can manipulate things ay way you like. Note, this was done using KiCad 10.0.03

 

Thank you!