Project
Projecttitel: CEM3340 VCO
Status: FINISHED
Startdate: 21.Nov. 2016
Duedate: 12.feb.2017
Manufacture link: https://www.muffwiggler.com/forum/viewtopic.php?t=170054&highlight=
Build info/code:
it is SMD and mostly 0805 (the smallest part being the voltage regulator, sot23-5) but not that hard.
Don't worry about all those multiturn trimmers, calibration is easier than you think. There are no special other components apart from a good quality 1.5nf capacitor and I think you need to order the voltage regulator at a place like mouser.
BOM: https://docs.google.com/document/d/1XSW3ewgHizRWL5AlVc7aHB7TIk77z9PuVF9al3tHGcY/edit?usp=sharing
in my case, a styroflex capacitor was used.
Schematics:
Gallery:
