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Other US Areas WTB: Bell System 70's era modems "Dataphones"
- Thread starter RCourtney
- Start date
Covers the non-continental US, including Alaska, Haiwaii, Puerto Rico and other territories.
I have the Bell System 1970s-era modem(s) you’re looking for. Please feel free to send me a private message so we can discuss details, condition, and photos.
RCourtney
Experienced Member
- Joined
- Dec 11, 2025
- Messages
- 58
Found a 40B1 rack. Modifying it from 16 202T to 6 212A 300/1200 modems and 801C ACU.
If anyone has a 40A series rack, I could use pics of positions 6-8 as these were wired specially for shared ACU usage.
Note: To reduce labor costs, Western Electric used flexible circuits instead of wire wrapping each connection.
If anyone has a 40A series rack, I could use pics of positions 6-8 as these were wired specially for shared ACU usage.
Note: To reduce labor costs, Western Electric used flexible circuits instead of wire wrapping each connection.
Attachments
NeXT
Veteran Member
That sure lived in the sun for a while!
NeXT
Veteran Member
I'd love to know how you design the replacement legend because my 202C is missing it completely.
Nice work on cleaning it up !
RCourtney
Experienced Member
- Joined
- Dec 11, 2025
- Messages
- 58
Long process...here is an overview:
I take the original and scan it in as a PNG file. I use INKSCAPE and make a rectangle with the measurements of the original. (If I remember, the 202 graphics and button layout or mirrored vertically)
Using calipers, I add circles for the buttons and the two pins that hold the clear plastic in-place.
I add the scanned PNG file as a layer so that I have a template.
I adjust the layer position and size to fit in the rectangle.
The layer with the rectangle and circles are send to a craft machine cutter (Cricut) to cut white card stock paper. Don't remove the pieces from the sheet yet.
Back to INKSCAPE I hide the rectangle/circle layer.
INKSCAPE has the ability to take a graphic and convert it to vectors. (vector information is text)
The next step is where experience with vector primitives are needed to clean up the image. INKSCAPE can display the text next to the graphic so as you delete un-needed items you can see the result.
Once the graphic looks satisfactory, I export it to SVG for the Cricut to cut color vinyl.
A transfer sheet is applied to the front of the vinyl and using dental picks remove the unwanted areas.
The transfer sheet is carefully aligned over the card stock. It gets hand rolled under pressure onto the card stock.
The transfer sheet has a weak adhesive and is easily pulled off leaving the vinyl on the card stock.
=============================================================================================
As far as your missing graphics, will have to use images from the BSPs page 2 from https://telecomarchive.s3.us-east-2.amazonaws.com/docs/bsp-archive/592/592-013-100_I3.pdf has a nice image.
I can scan text image and may find replacement fonts. The Bell System logo is also online.
Some fonts are free while others can be obtained for a fee.
I take the original and scan it in as a PNG file. I use INKSCAPE and make a rectangle with the measurements of the original. (If I remember, the 202 graphics and button layout or mirrored vertically)
Using calipers, I add circles for the buttons and the two pins that hold the clear plastic in-place.
I add the scanned PNG file as a layer so that I have a template.
I adjust the layer position and size to fit in the rectangle.
The layer with the rectangle and circles are send to a craft machine cutter (Cricut) to cut white card stock paper. Don't remove the pieces from the sheet yet.
Back to INKSCAPE I hide the rectangle/circle layer.
INKSCAPE has the ability to take a graphic and convert it to vectors. (vector information is text)
The next step is where experience with vector primitives are needed to clean up the image. INKSCAPE can display the text next to the graphic so as you delete un-needed items you can see the result.
Once the graphic looks satisfactory, I export it to SVG for the Cricut to cut color vinyl.
A transfer sheet is applied to the front of the vinyl and using dental picks remove the unwanted areas.
The transfer sheet is carefully aligned over the card stock. It gets hand rolled under pressure onto the card stock.
The transfer sheet has a weak adhesive and is easily pulled off leaving the vinyl on the card stock.
=============================================================================================
As far as your missing graphics, will have to use images from the BSPs page 2 from https://telecomarchive.s3.us-east-2.amazonaws.com/docs/bsp-archive/592/592-013-100_I3.pdf has a nice image.
I can scan text image and may find replacement fonts. The Bell System logo is also online.
Some fonts are free while others can be obtained for a fee.