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 ...
10 October 2020

Kit Oscilloscope Clock 8SJ31J review - 1

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S ince I got few small CRT tubes without driving circuitry, I took some time to think of a good way to test them and build a display of some...
09 September 2020

Western Electric 6167 Dekatron

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I am always alert on vintage display technologies and the latest common thread has started in mid-July 2020 at the first ham/electronics fle...
29 August 2020

Neon Tester TS-990

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My neon/nixie/gas-filled-tube tester homemade 5 years ago still works, but it is cumbersome to carry the device and a 12V battery when you n...
28 August 2020

Jam Replay Bluetooth speaker battery replacement

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While I've been blog-silent this August 2020, I do have thought of electronics and done some repairs here and there. Like a relative...
25 July 2020

Independent glow from a Thyratron tube

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Thyratron Glow! This is a self follow-up of a 2017 experiment with a low-pressure gas-filled vacuum tube, a Raytheon Thyratron 2051. [Well,...