This is the BAMA archive. These manuals are available for download and free of charge.
I am now accepting new manuals for inclusion in this archive. Contact and submission information below
Testing site, email me if you have any issues. See below for email instructions.
Donation request: We have so many large format manuals to scan. It would only be possible with a large scale scanner. Such as a DS-70000 or something else that could scan 11.5x100 paper. See email information below (be sure to include BAMA in the subject line).
Manual for the Hickok 539B Transconductance Tube Tester. There is an error In the schematic around the bias meter circuit. Please compare with the 539C drawing for comparison. The schematic has not been changed. It is exactly as Hickok printed it. Compliments of Dave Meyers.