The
first printed BDXC-bulletin was issued on 1st December 1961 and consisted of 5 pages of stenciled paper. Until 1984 the magazine had been issued in the A5-format and in the mean time also increased in number of pages. Since 1984 the monthly bulletin is printed in the A4-size format (gray-scale) and has varying 32, 36 or 40 pages. Nowadays A full color bulletin is available for electronic members. Printed bulletin is in black and white.