The Hamburg Quasar
Survey (Hagen et al. 1995; hereafter Paper I) covers
13600 deg2 of the northern sky (
) at galactic
latitudes
with digitized objective prism plates.
Given effective and robust search techniques the digitized database
of objective prism spectra is well-suited to make searches for objects
with low surface densities in the sky. The search technique
currently used to select bright (
17.5) QSO candidates from the
database has developed with growing experience.
We present here a first list of 121 spectroscopically
verified QSOs observed during 1986-1991, while experiments
were made to optimize the selection technique over a wide range of optical
brightnesses (13
19.5) corresponding to the full dynamical range
of the Schmidt objective prism plates. For details on the Schmidt observations
and the digitization method we refer to Paper I.