David,
if you have a basic Silette you don´t need to set it at all - it is just a reminder for the user, not a functional device setting a lightmeter.
The basic Silettes don´t have interchangeable lenses, most don´t even have a rangefinder. It was a broadly based line of cameras, with different features like RF, lightmeter, lenses and lens quality, even several types of shutters where offered.
What lens and shutter does your Silette have? The names will indicate the quality, coating type and construction, the shutters vary based on speed range and comfort (like EV coupling).
Some shutter types are prone to bust - during course of time the grease hardens and the shutter stucks. DON´T even think about pouring WD40 (or similar crap) into it. ;-) It won´t help and even worsen the problem - you need to disassemble the shutter and wash the single shutter blades in a solvent fluid like alcohol or aceton. Not that difficult.
Similar problems occur with the front focussing cell.
AFAIK all Silettes (as most Cameras up to the 1970s) where built in the Munich plant.
Your DIN/ASA conversion is correct, but you may consider using Agfa film with it - you pay for it by buying film, the cameras were sold at subsidized prices. ;-)
Yes, CK reads Colorfilm Kunstlicht (Tungsten CN), CT is Colorfilm Tageslicht (Daylight CN).
You don´t actually need a lightmeter - use a exposure table or sunny 16. I made a table based on the system and inspired by Rick Oleson´s idea... have a look, print it out, try it - I always carry one in my wallet.
http://rohleder.gmxhome.de/manuals/tomsk1d.pdf
Somewhere I have a Silette around, with IIRC Prontor shutter and Color Agnar lens... never tried it. Which is very unusual for me.
She will definitely be good enough to accompany you for some weeks as a daily users camera - small, inobtrusive, most lenses are quite decent.
Have fun with it!
