Circuits – Simple zener diode tester
Simple zener diode tester Ever found yourself with a handful of zener diodes, wondering if…
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DIY – Making printed circuit boards
Making printed circuit boards There are many ways to produce your own printed circuit boards.…
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Video – Colombo International Radio Tamil service Inaugural day transmissions
[embed]https://youtu.be/D7MB7G6ze04[/embed] Colombo International Radio Tamil service - Inaugural day transmissions Frequency - 873khz Time -…
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Circuits – 7MHz CW / AM QRP Transmitter
Build a versatile 7MHz QRP Transmitter capable of both CW and AM modulation. This DIY…
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Video – VWN Vasanth HF net Reception
VWN Vasanth HF net Reception at 7123.4 khz RX Hardware - MSI SDR Dongle Antenna…
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Video – Charminar net at 7080khz
Charminar net at 7080khz RX Hardware - MSI SDR Dongle Antenna - 66 Feet EFHW…
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Beautiful images received from NOAA19 weather satellite with experimental V dipole antenna
Beautiful images received from NOAA19 weather satellite with experimental V dipole antenna Location – Krishnagiri,…
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Video – NOAA19 weather satellite reception with experimental V dipole antenna
NOAA19 weather satellite reception with experimental v dipole antenna Date - 18.01.2022 Location - Krishnagiri,…
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Circuits – Offset tuning indicator for CW
An NE567 tone decoder, tuned to the transceiver`s CW offset frequency, ensures that the transceiver…
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Circuits – Simple tester checks LCDs
Manufacturers of electronic equipment use LCDs for calculators, watches, mini-videogames, and pagers, for example. In…