 A small stenciled, A5 size, newsletter was published bimonthly called HCCN (HCC Nieuwsbrief) similar to ACCN (ACC Newsletter).After participating in a large event for technical hobbies in April 1978 membership increased from 200 to over 1000.Soon the HCC had branches in every part of the Netherlands, and through the years the HCC grew to more than 200,000 members.