Tag: Günter Rother

Technik & mehr von damals und heute

Temperature sensor for IV-11 DCF melody

April 14, 2021

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A functional update for the IV-11 DCF melody watch is available from gr-projects. It is a radio temperature transmitter. The special thing about it is, that the transmitter operating in the ISM band 433 MHz is equipped with a photovoltaic cell (solar cell). Depending on the version, a small rechargeable battery or a CR2032 button…
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VFD clock with date, day of the week and sound

April 14, 2021

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I received a new kit for vacuum fluorescence display from Günter (gr-pojects). Thanks a lot! It is a clock with Type IV-11 vacuum fluorescent display tubes for hours, minutes and seconds, and an IV-18 tube for date display, and IV-3 for displaying the day of the week. The clock consists of a mainboard with power…
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