Author Topic: My 202 D1 from Associated Telephone Co LTD  (Read 1947 times)

Offline dsk

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My 202 D1 from Associated Telephone Co LTD
« on: July 23, 2016, 01:20:37 PM »
Removed some dust, and fitted new cords, now I have to make a subset!
When I turned the dial center this popped up, how old/new may that be?
dsk

Offline rdelius

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Re: My 202 D1 from Associated Telephone Co LTD
« Reply #1 on: July 23, 2016, 03:20:29 PM »
That is the GTE (General Telephone ) logo from late 50s to about 1970.Associated Telephone on the diagram was the old company name
« Last Edit: July 23, 2016, 03:22:50 PM by rdelius »

Offline dsk

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Re: My 202 D1 from Associated Telephone Co LTD
« Reply #2 on: July 23, 2016, 04:46:06 PM »
An my holiday trip I found this in an antique shop.
Never heard about Associated Telephone Co LTD before.
Picture before and diagram.
Seems original to me.





The base is marked D1 USA, and stamped inside with red ink: I 37 and in the metal B-7.
The dial is marked 29  and CB with red ink, and the metal is stamped A.E.Co type 24
The hooksw. has 2 N.O. (on hook) contacts.
The handset  is E1

How could the dial center have been in about 1930?
What have I actually got my finger into?

Working on a compact subset without ringer.
dsk
« Last Edit: July 23, 2016, 05:10:29 PM by dsk »

Offline WEBellSystemChristian

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  • Grandpa's 1955 Western Electric 500
Re: My 202 D1 from Associated Telephone Co LTD
« Reply #3 on: July 23, 2016, 04:51:10 PM »
It looks like your D1 went through a refurbishing house. Because the cord and dial aren't original, I would guess that it was set up for manual operation the original handset cord was frayed or broken.

Now that you replaced the cord, all you need is a nice #4 or #5 dial to complete the originality! Nice find!!
Christian Petterson

"Whether you think you can or think you can't, you're right" -Henry Ford

Offline dsk

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Re: My 202 D1 from Associated Telephone Co LTD
« Reply #4 on: July 23, 2016, 04:54:02 PM »
According to the diagram glued in the bottom plate, it is the right dial, this is obviously note a pure W.E. phone.
dsk

Offline dsk

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Re: My 202 D1 from Associated Telephone Co LTD
« Reply #5 on: July 23, 2016, 05:56:09 PM »
Here is the subset (without ringer)
The unit is put in to an old laptop power-supply, and made for plugging in the 4 prong plug from the table stand.
The circuit is made of different parts I had based on the idea of the triad-type circuit.
It works great!

Wiring diagram later.

dsk

Offline dsk

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Re: My 202 D1 from Associated Telephone Co LTD
« Reply #6 on: July 23, 2016, 06:00:41 PM »
Simple diagram, line in on top.
Out to desk stand at bottom.
Induction coil from a Siemens type  phone.
35 ohm transmitter winding (primary), 33 ohm winding Receiver (secondary), 95 ohms winding  + resistor +  capacitor = anti sidetone compensation. (tertiary).

dsk
« Last Edit: July 23, 2016, 06:05:32 PM by dsk »

Offline dsk

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Re: My 202 D1 from Associated Telephone Co LTD
« Reply #7 on: July 24, 2016, 03:38:29 AM »
Here are the diagram with desk stand and subset put in to the upper right corner.
The original drawing is a Kellogg.  As you see it is based on the same idea, and it works great.
dsk

Offline dsk

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Re: My 202 D1 from Associated Telephone Co LTD
« Reply #8 on: July 27, 2016, 04:14:00 AM »
I just have to make something ac dial card, and Ill guess this might be as good as anything else.
Printed on laser printer with picture with 4.1 cm and cut with circle cutter at 1 5/8 inch  ;)

dsk

Offline dsk

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Re: My 202 D1 from Associated Telephone Co LTD
« Reply #9 on: August 01, 2016, 12:53:46 PM »
I got a hint about the ral card should have been about like this:
dsk