Update on the 340-4BBL Clock
This was likely taken after I left. We had various, usually 3 "operating positions" or "stations." The main station, the VHF/ UHF station, and this was usually referred to as the CW or RTTY position. CW means Morse code, RTTY, pronounced "ritty" means Radio TeleTYpe. The receiver, a now expensive collectable Collins 75-A4, is the one towards the right with the black triangular bezel. On top of it is 1 part of a RTTY terminal which came from a mothballed ship up at Mare Island. A then friend had had some college ROTC training, and already had a military driver's license. He checked a Dodge slanty 1T stakebed out of the motor pool and we drove up there and got some printers and other items out of the ships. The printers here are old. The one printer is called a model 15, and to it's left you can just start to see what was called a "typing reperf" or "reperforator" chis means it has a keyboard (typing) and makes paper tape instead of printing paper. This is what is called "chadless" tape because the "holes" have a small tag which holds them in the tape, perventing a huge mess of discarded "holes."
The old RTTY paper tape was 5 bit, unlike the newer ASCII which is 8 bit. Thus, the old RTTY was more limited on what charactors or symbols could be generated. Keyboards on vintage TTY machines are odd. There is no upper and lower case letters, the letters are allways caps. There is an "letters" / "figures" selector, as the figures and punctuation is buried in the letters keyboard, which is only 3 rows. Typing on the old slow machines (radio amateurs then used what is called 60 speed) you'd hit a key and a fraction of a second later the machine would go kachunk--whir. so you had to learn to "time" your typing as a word like Mississippi could REALLY get you screwed up.
1968, Treasure Island, CA going to Navy Electronics Technician "A" school, we had a magnificent amateur radio club. We had a clock, there that ran backwards. Those used the old synchronous motor, just tear the motor apart and reverse the stator and put it back together.
This was likely taken after I left. We had various, usually 3 "operating positions" or "stations." The main station, the VHF/ UHF station, and this was usually referred to as the CW or RTTY position. CW means Morse code, RTTY, pronounced "ritty" means Radio TeleTYpe. The receiver, a now expensive collectable Collins 75-A4, is the one towards the right with the black triangular bezel. On top of it is 1 part of a RTTY terminal which came from a mothballed ship up at Mare Island. A then friend had had some college ROTC training, and already had a military driver's license. He checked a Dodge slanty 1T stakebed out of the motor pool and we drove up there and got some printers and other items out of the ships. The printers here are old. The one printer is called a model 15, and to it's left you can just start to see what was called a "typing reperf" or "reperforator" chis means it has a keyboard (typing) and makes paper tape instead of printing paper. This is what is called "chadless" tape because the "holes" have a small tag which holds them in the tape, perventing a huge mess of discarded "holes."
The old RTTY paper tape was 5 bit, unlike the newer ASCII which is 8 bit. Thus, the old RTTY was more limited on what charactors or symbols could be generated. Keyboards on vintage TTY machines are odd. There is no upper and lower case letters, the letters are allways caps. There is an "letters" / "figures" selector, as the figures and punctuation is buried in the letters keyboard, which is only 3 rows. Typing on the old slow machines (radio amateurs then used what is called 60 speed) you'd hit a key and a fraction of a second later the machine would go kachunk--whir. so you had to learn to "time" your typing as a word like Mississippi could REALLY get you screwed up.