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Published online by Cambridge University Press: 03 August 2017
We report a search for masers from the A-doublet of the ground-state of OH at 18cm, carried out with the Jodrell Bank Lovell Telescope and with the 25m Dwingeloo telescope. All objects north of δ = −20° which appear in the IRAS Point Source Catalog with fluxes > 1000 Jy at 60μm and 100μm were observed in all four lines and both circular polarisations over the required velocity range. Preliminary results of 52 maser sources are reported here.