You are right! Thanks for posting that. There is a great video our there that explains how to use a pencil to lower the crystal frequency.
On Saturday, November 14, 2026, John R. Hogerhuis <[email protected]> wrote: > > > On Sat, Nov 14, 2026 at 3:43 PM B 9 <[email protected]> wrote: > >> I just did that and got f = 2.45841MHz. >> > > So how relevant is that deviation for keeping time? > > ISTR Ron Wiesen mentioning that he would tune the value with pencil lead, > or some such. > > -- John. >
