Hobby Electronics Basics

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terminator use

I'm confused about the use of terminators. I'm sending pulse signals from some 93 ohm output equipment through 93 ohm c...
13 comments posted 18yrs
posted by entropy429
13 comments posted 18yrs posted by entropy429

does Cyrus amp need a load?

Hey all; My brother has a Cyrus amp that he would like to use a wireless headphone set with. Trouble is, there's no hea...
4 comments posted 18yrs
posted by toccata
4 comments posted 18yrs posted by toccata

DSL phone line

We just switched over to DSL from modem on home computers. Put DSL filters on the handsets in the house and also on the...
11 comments posted 18yrs
posted by perilmung
11 comments posted 18yrs posted by perilmung

Help needed to construct wireless headphones

Hi everybody, It has been a long time since my college and I wish to brush up my learning that I once did. I am in need...
4 comments posted 18yrs
posted by selfishgaurav
4 comments posted 18yrs posted by selfishgaurav

OpAmp and reference recomendations

I got tired of looking for a FET LDO that meets my line and load specs, so I'm building my own. The LP38691 is the clos...
2 comments posted 18yrs
posted by spamme
2 comments posted 18yrs posted by spamme

pulsing leds

Is there a upper limit as to how fast you can pulse an led say a ordinary red led 2v v forward,20mA current. I'm try to...
5 comments posted 18yrs
posted by entropy429
5 comments posted 18yrs posted by entropy429

Reducing EMF on cooling fans

I am tasked with reducing "EMF" in the vicinity of computer type brushless 12VDC cooling fans. Problem similar to http:...
14 comments posted 18yrs
posted by fritz
14 comments posted 18yrs posted by fritz

Help!!!!

I want to built a garage for an electric vehicle with a photovoltaic roof and/or a wind generator that will trickle cha...
6 comments posted 18yrs
posted by Vand93
6 comments posted 18yrs posted by Vand93

Need advice

Hi, I am interested in pre solid state electronics and would like to learn to design circuits and build my own guitar a...
10 comments posted 18yrs
posted by dan_lisa
10 comments posted 18yrs posted by dan_lisa

12 Volt Regulated Supply

I was looking at a 12 volt regulated power supply at Dick Smith Electronics cat. number M9935 @ www.dse.com.au for a re...
9 comments posted 18yrs
posted by the1930s
9 comments posted 18yrs posted by the1930s

Magnetic Earphones - Series Or Parallel?

I am thinking of building a set of earphones for my regen radio, as an alternative to my extremely uncomfortable antiqu...
1 comments posted 18yrs
posted by the1930s
1 comments posted 18yrs posted by the1930s

transistor base input

Hi all I have an old analog alarm system. I am hooking up the bell output to a microcontroller. Although the output vol...
24 comments posted 18yrs
posted by lerameur
24 comments posted 18yrs posted by lerameur

Quarternary Logic

Hey guys, I was thinking of a new concept whereby we could square the amount of information stored in a bit. Currently,...
1 comments posted 18yrs
posted by fathahrahman
1 comments posted 18yrs posted by fathahrahman