Abstract: Apparatus for reproducing magnetically recorded information comprise first and second reproduce heads for reproducing magnetically recorded information from a magnetic recording channel alternatively at first and second tape speeds. These reproduce heads include spaced pairs of matching pole pieces defining air gaps, and spacer elements between these pairs of matching pole pieces. The pole pieces and spacer elements are bonded into a solid unit by a bonding material filling the air gaps and bonding the pole pieces in each pair, the spaced pairs and the spacer elements to each other. Magnetic yokes are magnetically coupled to the bonded pole pieces and electromagnetic windings are magnetically coupled to the yokes.

Abstract: Methods and apparatus for mounting a device and adjusting its position employ a mount for the device and provide spaced isthmi located on a predetermined axis. The portion of the mount between the spaced isthmi is rendered tiltable about the mentioned axis. The device is mounted on the tiltable portion and its position is adjustable by tilting such portion about the mentioned axis.