Although no longer producing Ham Radio Equipment, R. L. Drake made some of the more advanced equipment at one time. Below are some manuals, tips and hints concerning some of this equipment. (To download, right click and choose "Save file as...")

 

 

T-4XC Transceiver Manual	T-4X Schematic
R-4C Receiver Manual	Parts, Resources, Materials
R4C Noise Blanker	PTO Troubleshooting
Erratic Power Out on T4XC	Transmitter Tuning Alternative