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18 Jul 2020 08:18:49 UTC
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PX4 Storm Compact 40 - Decocker only
Modified the pistol for decocker only - no safety (great video here on how to do that https://www.youtube.com/watch?v=GWc6i506oEQ)
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https://www.youtube.com/watch?v=31nYVfII1_Q
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https://www.youtube.com/watch?v=31nYVfII1_Q
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More from the publisher
Controlling
VIDEO
ENSEM
ensemble-rxtx-build-5-receive-transmit
In this portion of the build we pull together the receive/transmit switch
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https://www.youtube.com/watch?v=b3pRUSj4Ho4
Transaction
Created
1 year ago
Content Type
Language
video/mp4
Controlling
VIDEO
IRF53
irf530-push-pull-amplifier-part-4
In this video I complete the amplifier and do a few tests. I'll probably do some more experimentation/tests in a future video. The spreadhseet with the biasing results is here:
https://drive.google.com/file/d/1WuPTipThOh3vR14WIszo85OvGeUhAQ2X/view?usp=sharing
0:00 Alternative biasing for 2SC1971
2:23 FInal stage on the board
2:55 Description of L1 and T3 on the board
3:26 2SC1971 reinstalled and FInal stage SMD components installed
4:37 220 ohm feedback resistors installed
5:32 How to wind T3
7:25 Testing continuity of T3
8:05 T3 and L1 installed
8:36 First test without heatsink
9:40 Trace on the oscilloscope
10:15 Board mounted on the heatsink
10:40 Tested with board on heatsink
11:47 Self Oscillation? with increased (3.75V) gate voltage
12:35 Testing the amp with an AM signal
13:40 Wrap up
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https://www.youtube.com/watch?v=-UhQ0ouLv2c
Transaction
Created
1 year ago
Content Type
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video/mp4
English
Controlling
VIDEO
QRP 2
qrp-20m-ssb-part-2-first-mixer-and-pcb
In this video I look at the first mixer circuit mixing a 2Khz signal with a 10Mhz carrier
Also in this video I also show all the steps involved in creating a crystal ladder PCB using the "Fab in a Box" kit
https://pcbfx.com/main_site/pages/products/starter_kit.html
using also a Laminator (or applicator as its referred to here)
https://pcbfx.com/main_site/pages/products/applicator.html
I mention in the video a "hard wash" to get rid of the residue. I really meant to say a hard rinse under the faucet. Just let the running water do the work - don't touch the board itself
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https://www.youtube.com/watch?v=X5O1au3FvRc
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Created
1 year ago
Content Type
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video/mp4
Controlling
VIDEO
AUSTR
australian-garden-walk-with-george
Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube.
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https://www.youtube.com/watch?v=2Pvo8y0cR2Y
Transaction
Created
1 year ago
Content Type
Language
video/mp4
Controlling
VIDEO
ELECT
electroluminescent-slide-show
A viewer had asked me to give some up close shots of the connections on the Electroluminscent receiver I built a couple of years back. Here it is!
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https://www.youtube.com/watch?v=G7ii1hzLgPk
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Created
1 year ago
Content Type
Language
video/mp4
Controlling
VIDEO
PHASE
phaser-build-part-4-receiver-and-on-the
In this video I complete the receiver section. After completion I test using my signal generator and then finally put the radio on the air (receiving only of course!)
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https://www.youtube.com/watch?v=dwybAfJ2Evs
Transaction
Created
1 year ago
Content Type
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video/mp4
Controlling
VIDEO
TINYP
tinypico-radio-part-9-transmitter
In this video I start to build up the transmitter portion. Not much micropython here unfortunately.
I am going to be using a few sources. This is traditional phasing transmitter
http://www.arrl.org/files/file/Technology/tis/info/pdf/9304027.pdf
and this is one built around the Tayloe mixer seen in the receiver
http://www.wb5rvz.org/ensemble_rxtx/index?projectId=14
Specifically this portion
http://www.wb5rvz.org/ensemble_rxtx/09_qse
I will be building both and comparing. In this video I will build up the Audio phasing section. Schematics and board here:
https://github.com/thaaraak/Tinypico-Radio/tree/master/kicad/Transmitter
More on Phasing radios can be found in Chapter 9 of Experimental Methods in RF design
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https://www.youtube.com/watch?v=_56MiQ4oBJw
Transaction
Created
1 year ago
Content Type
Language
video/mp4
Controlling
VIDEO
ETHAN
ethan-at-quail-creek-shooting-dpms-ar-15
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https://www.youtube.com/watch?v=OqySqA8wEv0
Transaction
Created
1 year ago
Content Type
Language
video/mp4
Controlling
VIDEO
ENSEM
ensemble-rxtx-build-7-final-receive
Link to HDSDR Software
http://hdsdr.de/
Link to amazon for External USB Sound Card
https://www.amazon.com/V-TOP-Adapter-External-Digital-Dual-Mic/dp/B07FZJRHFB/ref=sr_1_1
Link to software update (under download link, otherwise headphone doesn't work)
http://www.vtopu.com/product1/showproduct.php?id=55
Corrections
- The binocular core has 4 turns bifilar (not 2)
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https://www.youtube.com/watch?v=i_Yo0XrurEY
Transaction
Created
1 year ago
Content Type
Language
video/mp4