CRB-8
Sound Technology Division, Sigmatek, Inc. Model 1000A/1100A System Precision FM Transmitter manual
https://archive.org/details/manualsplus_10185
Manual for the Sound Technology 1000A/1100A precision FM transmitter system used for receiver and tuner testing.

Manual for the Sound Technology 1000A/1100A precision FM transmitter system used for receiver and tuner testing.
Gould 13-804215-02 High Gain D.C. Brush Manual service manual
https://archive.org/details/manualsplus_11813
Service manual for Gould high gain DC brush recorder models 13-4215-02 and 13-4215-12.
Dranetz Technologies Version 2.0 DRAN-VIEW operator's manual
https://archive.org/details/manualsplus_11148
Operator's manual for DRAN-VIEW v2.0 AC power analysis software used with Dranetz power quality equipment.
Korg Polysix Owners Manual and Setting Charts
https://www.matrixsynth.com/2026/06/korg-polysix-owners-manual-and-setting.html
Kay Elemetrics Corp.. 7800 Digital Sona-Graph System maintenance manual
https://archive.org/details/manualsplus_10621
Maintenance manual for the Kay Elemetrics Digital Sona-Graph System, Model 7800, including analyzer and printer information.