- Видео 14
- Просмотров 3 657
AmpedUP Electronics
Добавлен 28 ноя 2022
JVC HD series RS10 projector lamp replacement and Chinese lamp comparison
In this video I show some differences in a AliExpress JVC BHL-5010-S lamp and housing copy vs the original extracted one from the JVC DLA-HD350 projector. Things are not always as they seem to be careful!
Просмотров: 70
Видео
JVC DLA-HD & RS10 Projector Series Prism Cleaning
Просмотров 9221 день назад
Here is a video on cleaning the 3 primary prisms of JVC DLA-HD series projectors. Dirty lens cause a lot of light to be wasted and degrades picture quality. This is not an easy process but if you d it right it will bring the optics back to new. Take your time and be very gentle! If you have the service manual for the JVC DLA-HD350 / JVC DLA-RS10 please contact me at: jeff@ampedupelectronics.com...
Testing KMR-400 low loss coaxial cable transmission line loss using power meter.
Просмотров 62610 месяцев назад
Today we’re testing the transmission line loss of KMR 400 low loss coaxial cable purchased from Amazon. #KMR400 #LMR400 #coaxial cable #amazonreview #hamradio #electronics #radio #cabletester
Wilson FGT-2 CB Antenna basic overview of the antenna element design.
Просмотров 13811 месяцев назад
I want to create a mini beam antenna with these model of antenna elements. This is short a video showing the construction and basic helix design of the Wilson FGT-2 antenna element for 27MHz frequencies.
CB Antenna Receive Test - Wilson FGT-2 Silver Load vs K40 Superflex 2FT SF-200K
Просмотров 332Год назад
2 Foot CB antenna receive testing: 2 foot Wilson FGT-2 Silver Load vs K40 Superflex SF-200K series CB antenna test. This is an out of band test using a local 10 meter fixed base station beacon that is broadcasting on 27.175 MHz VE3TEN. Notes: The Wilson Silver Load FGT-2 CB antenna has long been a favorite of CB users. The antenna gets its "Silver Load" name from the 18-gauge silver-plated wire...
CB Antenna Test: Wilson 5000, K40 SF-200K, FS KW-7, Everhardt SOTT-4, Goldenrod 45, RoadPro RP-550
Просмотров 1,5 тыс.Год назад
CB Antenna Test Review Shootout #1: Testing some popular CB antennas for RX (Receive) performance using a local 10 meter beacon from VE3TEN station 20 KM away. These mobile CB antennas are mounted to 3/8 thread magnetic mount on the roof of a building roughly ~70FT tall. #testing #electronics #radio #cbantenna #antenna #cbradio #bestcbantenna #sirio #sirioperfomer5000 #everhardt #sott4 #cbanten...
Nice Power SPS3010 by Bodun Direct NA Bench DC Power Supply Noise Problems
Просмотров 166Год назад
This is a Nice Power by Bodun Direct NA Bench DC Power Supply. I don’t know if they all suffer this SMPS noise problem. I noticed there is a lot of ripple on this model: Nice Power SPS3010. It certainly isn’t NICE having all that noise on the DC output. Please can someone help me fix it or return it under warranty? I tried to contact Bodun Direct NA today to see if they will help me. Product: N...
LU1014D SRPP Amplifier 15volt Thermal Electronics Test
Просмотров 55Год назад
testing a SRPP powerjfet amplifier after 30 minutes runtime.
SRPP LU1014D PowerJFET Audio Amplifier Test and Breakdown
Просмотров 191Год назад
I built a SRPP LU1014 PowerJFET audio amplifier based on a thread here: diyaudio.com/community/threads/using-lu1014d-in-parallel-for-a-power-amp-stage.396077 There is a design problem that damages the top FET when voltage is increased past 18VDC. I simulated circuit in Multisim.
Should test a 102" whip
i found the wilson 5000 to be best!
How about the loss at 27 MHZ? I purchsed this today to replace some aged RG-213. And hoping for better resaults and less loss.
The loss at HF is insignificant at 20-50ft.
Purchsed 75 Feet of the KMR 400. @@ampedupelectronics
50 feet of KMR-400 around 0.412 dB or 9% power loss. 50 feet of RG-213 is at 0.561 dB 12% power loss. Not a huge difference at that frequency.
What about a difference between this and LMR400 with a length of 100’? I’m trying to decide if it’s worth spending the extra money. Will be used for GMRS.
Great video showing the real loss on a higher frequency. Could you please delight us with another video but longer at 440 MHZ.
The loss at 440 MHz will be much less....less than 1db so not to worry it.
Want a test of the GOLDENROD 45
It is in the video.
Goldenrod is a nice antenna
show the circuit ?
sorry, its my own creation and I can't publish it.
Where do you buy lu1014d?
You can get them on eBay
@@ampedupelectronics Can you give me the link to buy the product?
Bạn mua lu1014d ở đâu