[GreenKeys] Teletype Model 3321 ?

[Rob Jarratt]

I have a supply of David Tumey’s rubber pads for the hammer here in the UK,
if they are the same as the Model 33. If I remember correctly he wanted
$7.50 for 10 pads.

 

Regards

 

Rob 

 

From: greenkeys-bounces at mailman.qth.net <greenkeys-bounces at mailman.qth.net>
On Behalf Of tomas at tlec.se
Sent: 28 October 2019 15:57
To: greenkeys at mailman.qth.net
Subject: [GreenKeys] Teletype Model 3321 ?

 

Dear group.

I have just aquired an Teletype Model 3321, hence I have registred with this
group.

It will require much service I guess.

Amongst other thing, the rubber-pad on the hammer is missing.

Now I have problems identifying what unit it actually is, since it internals
(the electrical parts located at the unit right-hand side)

It is equipped with a tape-reader and a punsch and friction feed.

The electricals looks very different from the drawings/images in the various
documents I have downloaded.

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?

 

 

 

 

 

 

Mvh

Tomas Larsson

Borås

Sweden

 

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