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A (Windows) program for generating testcards, and definition files for it for all sorts of standard (and historic) patterns. A good starting point for that library I keep meaning to write...
to retrotech software testcard tv video ... on 05 January 2007
Links to all sorts of retrotech stuff.
Building "crystal" radios without crystals.
to electronics radio retrotech ... on 07 September 2006
The Carl and Jerry stories from Popular Electronics, October 1954 through December 1964
to amusements electronics radio retrotech ... on 13 August 2006
Computer Laboratory - Relics Project - Virtual Exhibition
Some Cambridge computing history stuff. This is the overview page; there are more detailed lists of artefacts there too.
to cambridge electronics history retrocomputing retrotech ... on 13 August 2006
Very early (and very impressive) colour photos from Russia.
to history photography retrotech ... on 13 August 2006
Recordings of phone systems from various countries (mostly 70s-era). Includes one from Andy Emmerson. The "Evan Doorbell" ones are excellent -- better-quality presentation than many radio programmes.
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tasty by Adam Sampson.