Loading ...
Sorry, an error occurred while loading the content.

Topics List

Unknown Part

(8)
... This seems unlikely as 1) this part has a TO-220 case, and 2) in a battery charger an SCR is much more likely, 3) the terminal markings match current SCR
Chuck Hackett
8
posts
Feb 9

TV ad blocker

(14)
Sorry chum, I am currently employed at the network level, where we produce and also stream 30 and more channels, if it makes YOU happy I'll re-phrase it as
fmfvt
14
posts
Feb 3

Question on transformer

(46)
And this apparent slight of hand by the transformer is the exact reason why the answer to these question will never really be that simple. And indeed
Scrolling8
46
posts
Jan 30

IR ice detector

(3)
Thanks. She had done research you suggested and we found patents and some commercial stuff. I was hoping to get her to learn some electronics, and
chuck merja
3
posts
Jan 28

CFD lamps and bulbs interchangeability?

(4)
Read the whole blog on "bad bulbs" from a couple of weeks ago!
liam20011949
4
posts
Jan 18

Interesting Vehicle Detection Problem

(50)
Lidar uses very short high power pulses, so while the laser power is high, the pulses are so quick (10-100ns or so) that there isn't enough energy to damage
3ef1c723426cc754c6488158b2169553
50
posts
Jan 8

Bad light bulbs

(46)
And even monochromatic lasers do burn stuff ;-)
Stefan Trethan
46
posts
Dec 30, 2015

Antennae connection on car

(4)
I'll try them when the stores open on Saturday. Merry Christmas GB
greatyoga
4
posts
Dec 25, 2015

Flashing hi-intensity LED

(12)
If its in a flashlight, there probably isn't any capacitors or power supply, unless the lamp modulesare rated for a voltage higher than the batterys.  The
harry jenkins
12
posts
Dec 22, 2015

Repeat: Antenna vs. Distribution Amplifier

(11)
250' of RG-11 (?? ~1/2" dia 75 Ohm coax) will give you about 6 dB loss at VHF and about double that at UHF, which is fairly significant, so it really is worth
3ef1c723426cc754c6488158b2169553
11
posts
Dec 22, 2015

Ham antenea tuner

(3)
Such things may well exist, but there are good reasons you will have trouble finding much info: Coaxial feedline losses at high SWR are exacerbated above HF,
3ef1c723426cc754c6488158b2169553
3
posts
Dec 21, 2015

LEDs

(17)
Those look great, at a great price----Thanks
liam20011949
17
posts
Dec 16, 2015
View First Topic Go to View Last Topic
Loading 1 - 12 of total 12 topics