Hobby Electronics Basics

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amplifying a received radio signal

I'm interested in making my own WWVB time clock. (the WWVB is a 60kHz signal sent out by the US NIST with an encoded ti...
3 comments posted 18yrs
posted by occamsshavingkit
3 comments posted 18yrs posted by occamsshavingkit

Analogue Simulation Software

hi Guys, I am very new to this, I want to know if there is a simple software available which can simulate simple analog...
8 comments posted 18yrs
posted by hasanr
8 comments posted 18yrs posted by hasanr

reliably testing diodes in circuit ?

while checking diodes **in circuit** with diode setting on DMM i ran across a unexpected results where diode test at (....
11 comments posted 18yrs
posted by some
11 comments posted 18yrs posted by some

How can I connect 4 microphones to one recorder?

Here's a picture of what I want to do: http://home.freeuk.com/visual.basic/4_microphones_into_one_recorder.jpg The tape...
7 comments posted 18yrs
posted by kylix_is
7 comments posted 18yrs posted by kylix_is

LED Lumens to Lux conversion?

Hi, I'm trying to pick out some LED's for to make a 10,000 Lux @ 36 inches (or 1 meter) LED lamp. My problem is that I'...
5 comments posted 18yrs
posted by matt
5 comments posted 18yrs posted by matt

Composite video signal

Good day! I am reading some application notes regarding Video Basics: http://www.maxim-ic.com/appnotes.cfm/appnote_numb...
0 comments posted 18yrs
posted by mr.whatever
0 comments posted 18yrs posted by mr.whatever

RD and WR signals

Hi, Why is WR (Write) active low and RD(Read) is high ? Thx in advans, Karthik Balaguru
6 comments posted 18yrs
posted by karthikbalaguru79
6 comments posted 18yrs posted by karthikbalaguru79

Problem with hum/buzz in amp

I have re-packed ready-made amp to new (prittier) case, and now, even when volume is down to zero - I am getting hum/bu...
7 comments posted 18yrs
posted by janitor404
7 comments posted 18yrs posted by janitor404

Collins No Battery Flashlight

Years ago there was a great thread on the Collins No Battery Flashlight....
0 comments posted 18yrs
posted by kenneth.mosher
0 comments posted 18yrs posted by kenneth.mosher

Anyone ever use ROHM semiconductors?

I was looking through the selection at Digikey, and I noticed they seem to run about 20 to thirty percent cheaper then...
0 comments posted 18yrs
posted by spamme
0 comments posted 18yrs posted by spamme

inquiry

Does any one out there knows how to build salinity meter, temperature meter and pH meter? Do you have circuit digram the...
1 comments posted 18yrs
posted by ur2flip
1 comments posted 18yrs posted by ur2flip

measuring voltage on dc motor?

I'm looking the specs for a motor and one of the things it lists is measuring voltage. Based on the rest of the spec sh...
7 comments posted 18yrs
posted by brandon.joseph.moore
7 comments posted 18yrs posted by brandon.joseph.moore

neon transformer

Some time ago I saw an advertisement, or thought that I did, for a neon transformer, a high voltage transformer about h...
6 comments posted 18yrs
posted by dewhurst
6 comments posted 18yrs posted by dewhurst