21 November 2018

Sending fragments of data to a microcontroller

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Alright. I have (autogenerated) a new problem to solve: I want to be able to send few bytes of information to a microcontroller installed...
11 November 2018

Reviving a ceiling lamp from CFL to LED

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We've had at home a ceiling lamp for about 10 years, and for the last 4 years it has misbehaved. It contains two 55W CFL tubes with an ...
06 November 2018

Elka 135, calculator from Bulgaria

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Meet the Elka 135 scientific calculator! I bought this marvel in FN 2018 fair. Batteries had leaked inside, so this was the fault to fix (y...
26 October 2018

Industria Macchine Elettroniche IME-141 - eeeeeerror

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I let my daughter play with IME-141 calculator. Since a calculator is boring if you don't have maths to do, she pressed few buttons at t...
06 October 2018

FM radio for the bathroom - followup

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This is a follow-up to my previous post about an FM radio for the bathroom morning routine . The good old Samsung Galaxy S (i9000) does a w...
13 September 2018

Rethinking my mobile setup

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Alright, the shortened UHF-only Nagoya UT-106 is back in service. I added a piece of RG-58 with PL-259 so that I could measure SWR. But just...
06 September 2018

Nagoya UT-106 intermittent signal

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Now that I was enjoying trouble-free mobile HAMming, my modified Nagoya UT-106 developed a fault causing intermittent reception. Moving the...
03 September 2018

FM radio for the morning routine: September 2018 attempt

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Following my previous post on two attempts at joining the morning news and the morning bathroom routine, in both cases something is too wro...