UTMonkey

Hi All,

Just finished another little project I2C+RTC and I am really pleased with my progress.

I love the challenge of writing code to do a "job" but also the buzz of it (finally) working.

So the question is:-
when was your first electronics buzz?

do you still get it?

I look forward to your responses...

Mark

HS3

It is always thrilling when something you designed works. I have done so many things that I could not remember them all but by coincidence I just posted this.

blueroomelectronics

It never gets old, my first big thrill was building a COSMAC ELF1802 computer in 1976.

__________________
Bill
Smart Kits build Smart People
http://www.blueroomelectronics.com

shaneshane1

mine was using a 555 timer with a variable resistor to operate a servo motor, which a lot of people on this forum helped me with!!!

__________________
If we were over 100 times the size we are now, then wouldn't what we already have be nanotechnology!!!

audioguru

I made a voice scrambler for the wireless boardroom telephone conference system tor a major bank's new head office by using single sideband suppressed carrier. It inverted the audio frequencies and was completely unintelligible but was perfect when descrambled. Then they wanted a second transmitter which I made.

The two tranmitters were not sync'd so the sound increased and decreased in level like a rotating Leslie speaker.

I modified them to operate with AM modulation then it was fine.

The bank soon went bankrupt because they cheated customers and got caught.

__________________
Uncle $crooge

rjvh

for me and it still is a thrill the design and make it work, swich panels and more lately control units for industrial machines

but an other kind of thrill was repairing TV,s or other electrical equipment

Robert-Jan

Pommie

Listening to the moon landing on a crystal radio that I had built. I was 10 at the time and built it from a book.

Mike.

blueroomelectronics

I almost forgot my first crystal radio, big long wire out the window and the search for a cold water pipe

__________________
Bill
Smart Kits build Smart People
http://www.blueroomelectronics.com

Gayan Soyza

This is my first.

http://www.electro-tech-online.com/e...led-mouse.html

__________________
Gayan
Forum Supporter

HS3

That's not really a scrambler although that system *was* used to try to conceal communications but it was trivial though and does not even come close in difficulty to anything which today is not considered secure. If 30 years ago you were faced with having to intercept a spread spectrum communication you'd find it impossible. Today you can add all the digital processing you want.

I remember working on a project which had the same system of inverting the band frequency. A non-tech boss asked us how it worked and my colleague, pointing at the block diagram, says "well, here at the input you say 'yeeeeeeeessssssssss' and here at the output comes out 'noooooooooo'" and we all held our smiles for a second while the guy tried to think about it.

crust

Mine was the LM3909 flasher thing that could run for like years on a C battery. The next project was a device for my stereo / phone. When the phone picked up / rang it would automatically mute. I can't remember what magazine I had seen that circuit in.

Marks256

Mine was taring apart things. Good times.

__________________
There is no "I" in "team", unless Apple makes it... Then it would be iTeam.

mneary

Mine was taking something apart and making something different with the pieces. I salvaged some transistors from a logic circuit and substituted them into an amplifier from Popular Electronics. I etched my own PC board; I still have it, wrote the date 1966 into the etch.

killivolt

I hired an engineer to develop a (Detection Device) for water and lint. It was to be used on common appliances like (Lint) detection - Refrigerators, Dryers, Furnace. For (Water) Washers, Dishwashers Etc.

This device could power a 15amp motor to suck out water or to drive relay's buzzers or shut off the appliance and alert the customer to the problem.

Lint accumulation can become a fire hazard in a Dryer. But Refrigeration it shortens the life of the system (Keeps it from running cool on the condenser side of things.) The same unit detected both.

Playing around with that thing and watching it work was the coolest thing ever.

__________________
Truthiness Monkeys : Obedience, Ignorance, Fear.

shokjok

My first working project was an Archer kit, a telephone amplifier with a suction cup on the handset ( remember those?) I bought three more Archer kits, and never got them to work properly.