Teletype Model 3321
Verfasst: Mo 28. Okt 2019, 17:52
Hello all.
My name is Tomas Larsson, living i Sweden.
I have just aquired an old Teletype model 3321.
The problem I have is to identify what unit I really have, since the Electrics differs quite a lot from the drawings/images I have seen i various documents.
There is 4 circuit bords in slots, with edge contacts, in front of the circuitbords there is a transformer.
The Molex contacts, number 2 and 3 are un-populated, i.e the whole contact house is missing.
Position 1 seems to connect to external data, and number 5 to two switches on the face-plate (actually 4 switches but only 2 is connected).
The circuit bords are marked as follows, starting with board closest to the front:
Board #1 Teleprint BS 230 Connects with a header contact at the bottom
Board #2 Teleprint BS 263 Connects with a header contact at the bottom
Board #3 Must be powersupply for reader etc
Board #4 Teleprint BS 270 Connects with a header contact at the bottom
There is allso a small board mounted upside down in the base between board 3 and 4.
On the marking label it says ”Model 3321 3WF” I amn not sure about those 3 last letters though, since they are difficult to read.
Does anyone have any clue what I got?
My name is Tomas Larsson, living i Sweden.
I have just aquired an old Teletype model 3321.
The problem I have is to identify what unit I really have, since the Electrics differs quite a lot from the drawings/images I have seen i various documents.
There is 4 circuit bords in slots, with edge contacts, in front of the circuitbords there is a transformer.
The Molex contacts, number 2 and 3 are un-populated, i.e the whole contact house is missing.
Position 1 seems to connect to external data, and number 5 to two switches on the face-plate (actually 4 switches but only 2 is connected).
The circuit bords are marked as follows, starting with board closest to the front:
Board #1 Teleprint BS 230 Connects with a header contact at the bottom
Board #2 Teleprint BS 263 Connects with a header contact at the bottom
Board #3 Must be powersupply for reader etc
Board #4 Teleprint BS 270 Connects with a header contact at the bottom
There is allso a small board mounted upside down in the base between board 3 and 4.
On the marking label it says ”Model 3321 3WF” I amn not sure about those 3 last letters though, since they are difficult to read.
Does anyone have any clue what I got?