This is the BAMA archive. These manuals are available for download and free of charge. Do not be tricked into paying for a manual that is available here for free.
I am now accepting new manuals for inclusion in this archive. Contact and submission information below
Manual for GR 1231B Amplilfier and Null Detector. Compliments of Jerry J.Ingordo, KC2HAE.
1231b.djvu is only a copy of the file gr 1231b amplifier & null detector.djvu for some browsers having problems