The Tektronix 1241 is a logic analyzer similar to the [[1240]]. The main difference between the two is that the 1241 has a liquid-crystal color shutter in front of the monochrome CRT, effectively making it a colour display, while the 1240 has a normal (green) CRT.
#redirect[[1240]]
* [http://w140.com/tek_1241_service.pdf Tektronix 1241 Service Manual (PDF)]