to purchase a chime from KNOCK or just want more details?
vintage chime you would like to sell or trade-in?
to repair or restore your vintage doorbell?
request for a custom designed doorbell?
about your vintage chime not covered in the Tech Advice pages?
propose an electronic replacement for the Rittenhouse dashpot?
other thoughts about KNOCK or the fancy chime universe?
report a typo? I have intentiaonally included dozens to satisty
you inner proof-reader!
here to contact me via email