22 January 2021

DMM Input Impedance

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I am working on a very low power LED blinker and the need of measuring currents in the range of microamps (uA) has opened me new challenges ...
31 December 2020

20m magloop update

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Considering the success with a magnetic loop for 20 metres , now I wanted to be able to use a bit more power than 2.5W (at 5W it heated the ...
29 December 2020

FNIRSI DC-6006L Power Supply and a bug

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D uring "Black Friday|Week" 2020 I bought the DC power adapter FNIRSI DC-6006L. I would not call it a "power supply" sin...
27 December 2020

Eight TIL308 displays in a clock

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I would not say that the long lockdown and alike has allowed me to reach the bottom of the to-do bucket, but it slowed down the consumption ...
13 November 2020

New banner picture with 1972 Toshiba logo

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After a long time I have changed the banner picture of this blog. I was looking inside a 1972 CB handheld from Midland and noticed these met...
28 October 2020

ICOM BP-84 battery pack

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At a slow but steady pace I am working on a 10 GHz WBFM  receive chain not based on RTLSDR. The path requires having a receiver capable of W...
13 October 2020

Kit Oscilloscope Clock 8SJ31J review - 3

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Since I have written a review of this kit I have been asked to share pictures of my build. I am unsure how useful they can be, maybe just re...
11 October 2020

Kit Oscilloscope Clock 8SJ31J review - 2

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After few days fiddling with the kit I came up with one further tip for future builders: use a "sort-of" socket for the two fuses ...