Posted in STM32

STM32 Mbed Quadrature encoder input

How to use a quadrature encoder with STM32/Mbed online compiler? This code is how I’ve solved it. At first, surfing the net searching for a…

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Posted in DDR/GDR tubes Geiger Muller Tubes

VEB Robotron 70013

I’ve found this tube from an eBay seller called “LCI electronics”. He’s from Bulgaria. This tube was made in ex DDR, German Democratic Republic, in…

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Posted in Admin's blog Ham Radio

PRC320 power supply repair

My military HF manpack radio PRC320, 3 months after I’ve bought it, started to make a whistle and was not able to tune on any…

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