17 Feb
2025
17 Feb
'25
1:08 p.m.
On Mon, 2025-02-17 at 17:35 +0000, Chuck Guzis via cctalk wrote:
> Teledeltos paper had a silver layer over a carbon
layer, and a
> spark
> blew off the silver to expose the black carbon. (I think that's
> how it
> worked, I haven't seen this stuff in decades!) It was used in
> early
> machines for sending weather facsimile maps, for instance.
I think the printer beside the B220 in the Caltech Boothe computer
center was probably mistakenly called a teledotis printer. It
definitely deposited soot on the paper, and then thermally fused it.