Hobby Electronics Basics

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Power Supply Voltages

I'm wondering why I can't get a multitude of voltage's out of just a single transformer? I want to be able to have seve...
9 comments posted 20yrs
posted by Abstract.Dissonance.hotmail.co
9 comments posted 20yrs posted by Abstract.Dissonance.hotmail.co

Water leakage sensor ideas

My gas water heater (50 gallon) will spring a leak in the next two years, if past history is a reliable indicater (Repl...
18 comments posted 20yrs
posted by ehsjr
18 comments posted 20yrs posted by ehsjr

fuse rating question

What is the difference between a 15A 125V and a 15A 32V fuse? Microwave broke the other day. I was headed out to the pa...
29 comments posted 20yrs
posted by paul.marsREMOVE
29 comments posted 20yrs posted by paul.marsREMOVE

New development system makes FPGA design easy

Hevday Logic Ltd has released a new Logic Module with accompanying software to simplify the use of FPGA technology in p...
0 comments posted 20yrs
posted by andy.ward
0 comments posted 20yrs posted by andy.ward

Self Flashing LEDS

Hello, I was just wondering if anyone would be able to explain to me ( or know of any website that can explain to me) h...
2 comments posted 20yrs
posted by mike_cicoria
2 comments posted 20yrs posted by mike_cicoria

Wood as an insulator?

Why is it safe to use wood around high voltage when it contains moisture? According to www.woodbin.com/ref/wood/emc.htm...
18 comments posted 20yrs
posted by larrymoencurly
18 comments posted 20yrs posted by larrymoencurly

reltec lorain

i recently came acrossed a lorain by reltec model number d84s841.dc-dc power supply. does anyone know anything about wh...
0 comments posted 20yrs
posted by julius4676
0 comments posted 20yrs posted by julius4676

9-3Vconverter

Kia Ora I'm trying to assemble a pcb with no concrete values from the creators ( a past employee designed it and took t...
13 comments posted 20yrs
posted by tim.strange
13 comments posted 20yrs posted by tim.strange

paper like wires - what are these ?

hi, i have seen very flat wires with strips running through them. what are these cables called? they are very flat just...
3 comments posted 20yrs
posted by brazingo
3 comments posted 20yrs posted by brazingo

about the arrow direction of bulk of pmos and nmos

Hi All I would like to confirm with you all if the arrow convetion of the bulk for pmos and nmos is the flow direction o...
13 comments posted 20yrs
posted by cheanglong
13 comments posted 20yrs posted by cheanglong

Frequency synthesizer-VCO

I am reading this time about a frequency synthesizer with a VCO. What i am trying to understand is the use of a program...
2 comments posted 20yrs
posted by papageorgiou40
2 comments posted 20yrs posted by papageorgiou40

op amp input ranges

I'd like to know how close to the positive rail you can go with the inputs. I was looking at the LT1013 in particular,...
5 comments posted 20yrs
posted by kellrobinson
5 comments posted 20yrs posted by kellrobinson

30 Gauge Wire & DC Motor?

I was wondering if I can use 30 gauge wire-wrapping wire to power a DC motor. The motor is a "Gear Motor 2" from www.ho...
3 comments posted 20yrs
posted by redbrickhat
3 comments posted 20yrs posted by redbrickhat

Deciding factor with potential dividers

Idiots guide to potential dividers. Please help If I want to produce a potential divider with a 5Vdc supply. Wanting 2V...
8 comments posted 20yrs
posted by iantedridge
8 comments posted 20yrs posted by iantedridge

Common SMD size

What is the most common (of the larger) SMD sizes for resistors, caps and the like? The style number is what I'm after....
40 comments posted 20yrs
posted by newszz10
40 comments posted 20yrs posted by newszz10