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Welcome to Richardsradios-collection of old radios and test equipment edit / delete
to electronics radio repair retrotech test-equipments ... on 07 August 2012
The Douglas Self Site edit / delete
Audio electronics, and a fascinating collection of obsolete engine technologies. Steam engine using boiling petrol as a working fluid, anyone?
to amplifier amusements audio electronics engine engineering mechanica retrotech steam valve ... on 19 June 2012
Can't remember how I got here, but the US reports on captured U-boats are quite interesting. (They thought the hulls were neat but the plumbing wasn't very good.)
to boats history retrotech submarines ww2 ... on 28 May 2012
The Phillips Code edit / delete
Not only was "u" for "you" common telegraphic practice, there was actually a widely-adopted standard for these kinds of abbreviations. (Reading between the lines in documentation about the Titanic's last radio signals, you can see that all the messages we're used to seeing written out in perfect longhand English were actually sent as what today looks like SMS-speak...)
telegraphic codes and message practice edit / delete
Extremely detailed overview of telegraphic codes. Lots of examples of codebooks and schemes for digitally encoding characters. Fascinating stuff.
to code encoding retrotech signalling telegraph ... on 27 May 2012
Museum of Communication edit / delete
In Burntisland. Worth a visit at some point, it looks like.
Collecting, Restoring and Using Vintage Radio edit / delete
Good collection of WW2 radios -- from all over the world.
Electronics Projects - Vacuum-State Electronics edit / delete
A variety of neat valve-based projects -- amplifiers, scope-based TVs, etc.
to amplifier audio electronics retrotech tv valve video ... on 10 April 2012
The Millions : The Arcades Project: Martin Amis’ Guide to Classic Video Games edit / delete
Martin Amis's guide to video games.
David Knight. Radio, electrical and electronic articles. edit / delete
Impressive section on adding an all-mode converter to an RA17, and an excellent description of the guts of one of the common SGC* autotuners.
to antenna electronics ra17 radio retrotech transverter tuner ... on 30 March 2012
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tasty by Adam Sampson.