Manufacturer Manuals/Drawings
The documents below are the manufacturer's original maintenance and
installation manuals for some of the equipment used at the museum.

Be patient when downloading.    Some of these files are quite large.
Depending on the speed of your interent connection, some may take a several minutes to fully load.

MFG	MODEL	TYPE	PGS	FILE SIZE	DOCUMENT
US&S	ATT-20 Audio Track Transceiver	Audio Track Circuit	---	138K 113K 110K	"Installation and Maintenance" Manual (6299) Transmitter Schematic Receiver Schematic
US&S	Audio Frequency Overlay System (includes ATT-20 and AFO-IIC)	Audio Track Circuit	---	2250K	"Application, Installation, Maintenance" Manual (6414)
US&S	High Frequency Track Circuits	Audio Track Circuit	---	391K	"Installation and Maintenance" Manual (5865)
US&S	Semaphore Signal Style T2	Semaphore Signal	---	942K	Maintenance Manual (U-5008)
US&S	Style "DW" Automatic Flagman	Semaphore Signal	---	548K	Installation and Adjustment Manual (U-5004)
US&S	Semaphore Signal Style S	Semaphore Signal	---	3154K	Maintenance Manual (U-5019)
US&S	Semaphore Signal Style B	Semaphore Signal	---	1208K	Maintenance Manual (U-5013)
G.R.S. Co.	Semaphore Signal Model 2A	Semaphore Signal	---	3567K	Signal Handbook (1003A)
---	Railroad Signals Textbook - Book 1	Textbook	32	4748K	Book 1
---	Railroad Signals Textbook - Book 1 Drawing	Textbook	1	52K	Book 1 Draw
---	Railroad Signals Textbook - Book 2	Textbook	30	4348K	Book 2
---	Railroad Signals Textbook - Book 2 Figure	Textbook	1	82K	Book 2 Fig

NOTE: Left click on PDF to open, right click to download.

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Return to OERM Signals homepage 02/23/2004