This is a really excellent example of ham ingenuity. Michael, AA1TJ, has built an 80 meter CW transmitter from the components in one of the compact florescent light bulbs.
AA1TJ’s Lightbulb Transmitter!!!!
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SolderSmoke Daily News — Ham Radio Blog
Serving the worldwide community of radio-electronic homebrewers. Providing blog support to the SolderSmoke podcast: http://soldersmoke.com
UK-based solder-smokers can get 5
of these bulbs for £1 in the Homebase chain just now (4th Jan)
– a cheap source of components! – alternatively you can use them as light-bulbs….
Neil GM8EUG