larson@sri-unix.UUCP (07/08/83)
#R:ihuxr:-46100:sri-unix:15900001:000:533 sri-unix!larson Jun 10 00:03:00 1983 I think the U.S. companies just gave up. Last I heard, the only manufacturer of receiving tubes in the U.S. was RCA. What do you see wrong with transistors? They use less power, so they run cooler -- providing their nearby components with a better environment. They are smaller, so they can be mounted on the board, and with the extra space more sophisticated circuit designs become practical. By running cooler, they probably can produce less white noise than tubes. Oh, one more thing, in most cases they cost less. Alan