bath thermometer

canned circuits bath thermometer elektor december 1980 — 12-07 circuits Earlier in the year readers were invited, in the form of a competition, to send in their impression of what electronics could do in a can. No great limitation was imposed on what type of can was used although 10 gallon oil drums and the like were ruled out. This did not matter however since all entries in- cluded the use of the good old beer or soft drinks can. The ideas poured in and they ranged from the very funny to the very serious, useful circuits. This issue is mainly composed of 23 of the best entries, in fact, the prize winners. Judging, which was carried out by our international editorial staff, was difficult. Of the final selection, seven have been published complete with a printed circuit board. These were chosen as the best in terms of an original idea coupled with practicality. These seven readers will each receive a Casio LCD credit card calculator that can also be used to compose and play back...