Search found 36 matches
- Tue Dec 20, 2022 8:11 pm
- Forum: General Discussion
- Topic: Repairing open transformer / coil windings
- Replies: 0
- Views: 63472
Repairing open transformer / coil windings
It occurred to me that a particular technique for repairing open fine magnet wire deep within coil windings may not be well known - I haven't yet seen it mentioned on the net. Maybe it's discussed out there somewhere but I haven't come across it. Recently I used this technique to fix the open primar...
- Thu Dec 15, 2022 7:42 pm
- Forum: General Discussion
- Topic: Telegraph Relays
- Replies: 0
- Views: 42780
Telegraph Relays
Some stuff on telegraph relays, in particular restoring and bringing into excellent operating condition a 20-Ohm Pony relay dating from the late 19th century : http://ki3u.byethost3.com/Radio-PhysicsDIR/Telegraph/Telegraph%20Relay%20context/The%20Telegraph%20Relay%20within%20its%20context.html Berj ...
- Sat May 21, 2022 7:57 am
- Forum: General Discussion
- Topic: A simple ballpark check of a Gaussmeter's accuracy
- Replies: 1
- Views: 52951
Re: A simple ballpark check of a Gaussmeter's accuracy
With today's inflation I would think yes. It is to be remembered that this instrument responds to static, or very slowly varying fields. If you want probe oscillating fields, say at 60 Hz, you will need a different instrument, for example one of the series of Trifield meters, or the Cornet Model ED8...
- Wed May 18, 2022 10:49 am
- Forum: General Discussion
- Topic: Using a Satellite Finder as a WiFi Sniffer
- Replies: 1
- Views: 34908
Re: Using a Satellite Finder as a WiFi Sniffer
If you mean possible with every satellite finder - my guess is probably.
- Tue Feb 22, 2022 9:48 pm
- Forum: General Discussion
- Topic: The 6L6 one-tube CW Transmitter
- Replies: 0
- Views: 45276
The 6L6 one-tube CW Transmitter
Anybody here interested in one-tube amateur radio CW transmitters ?
I've put up on my website a bunch of stuff on that :
http://ki3u.byethost3.com/Radio-Physics ... itter.html
Berj / KI3U
I've put up on my website a bunch of stuff on that :
http://ki3u.byethost3.com/Radio-Physics ... itter.html
Berj / KI3U
- Sun Aug 08, 2021 1:41 pm
- Forum: General Discussion
- Topic: Gauss field shielding the Laptop computer - for health
- Replies: 1
- Views: 29577
Re: Gauss field shielding the Laptop computer - for health
I've added an addendum - on the Lenovo Thinkpad T540p
Berj / KI3U
Berj / KI3U
- Sat Jul 31, 2021 7:17 pm
- Forum: General Discussion
- Topic: Electronics into the Battle of Gettysburg
- Replies: 0
- Views: 58624
Electronics into the Battle of Gettysburg
I describe an electronics experiment with some witness bullets
from the Battle of Gettysburg :
http://ki3u.byethost3.com/Mysteries-and ... sburg.html
Berj / KI3U
from the Battle of Gettysburg :
http://ki3u.byethost3.com/Mysteries-and ... sburg.html
Berj / KI3U
- Sat Feb 20, 2021 6:53 pm
- Forum: General Discussion
- Topic: Using a Satellite Finder as a WiFi Sniffer
- Replies: 1
- Views: 34908
Using a Satellite Finder as a WiFi Sniffer
It's very quick and easy to use a Satellite Finder to detect WiFI signals and more :
http://ki3u.byethost3.com/Radio-Physics ... iffer.html
Berj / KI3U
http://ki3u.byethost3.com/Radio-Physics ... iffer.html
Berj / KI3U
- Wed Dec 02, 2020 12:08 pm
- Forum: General Discussion
- Topic: Radar Speed Gun experiments
- Replies: 2
- Views: 30528
Re: Radar Speed Gun experiments
I've added more experimental results, including with a BB gun.
Berj / KI3U
Berj / KI3U
- Tue Nov 10, 2020 7:34 pm
- Forum: General Discussion
- Topic: Radar Speed Gun experiments
- Replies: 2
- Views: 30528
Radar Speed Gun experiments
Anybody have any interesting ideas for experiments with radar speed guns ?
I describe a few using the Bushnell Speed Radar Gun, here :
http://ki3u.byethost3.com/Instruments_e ... 20Gun.html
Berj / KI3U
I describe a few using the Bushnell Speed Radar Gun, here :
http://ki3u.byethost3.com/Instruments_e ... 20Gun.html
Berj / KI3U