Hobby Electronics Basics

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Biasing Transistor

Hi all, Placing a finger on the base pin of this darlington configuration glows the LED (in fact reaches very close to...
7 comments posted 22yrs
posted by nospam4u_jack
7 comments posted 22yrs posted by nospam4u_jack

Transformer getting hot and burning

I have bought a tape recorder whose rectifier was designed for 60hz and 120 volts and I changed only the transformer in...
6 comments posted 22yrs
posted by adeshpanus
6 comments posted 22yrs posted by adeshpanus

PLL confusion

I'm trying to learn about PLL circuits and admittedly I'm a newbie and therefore confused as usual. Why is the phase de...
21 comments posted 22yrs
posted by road12fg
21 comments posted 22yrs posted by road12fg

BH Curve in Spice?

Greetings: Can I simulate a BH curve using the CM6 spice program? If so, how. Randy
1 comments posted 22yrs
posted by aaawelder
1 comments posted 22yrs posted by aaawelder

Newbie Question

I am a complete newbie in electronics and am about to start some 5V digital CMOS and TTL IC projects. Do I have to worr...
13 comments posted 22yrs
posted by slave
13 comments posted 22yrs posted by slave

CD4093

Could I accomplish the same thing as the CD4093 IC if I used 4 single NAND gates? In other words, if this chip is just 4...
2 comments posted 22yrs
posted by lkj
2 comments posted 22yrs posted by lkj

Spike!

Greetings, I read an article on a transformer test recently where the term "spike" was used. I didn't give it much thou...
4 comments posted 22yrs
posted by aaawelder
4 comments posted 22yrs posted by aaawelder

Capacitors

Am I right in thinking that it's the ripple current property of a capacitor that makes it suitable for discharge experi...
1 comments posted 22yrs
posted by mike
1 comments posted 22yrs posted by mike

Rechargeable alkalines?

Would these batteries be a good choice for use in a bicycle LED blinking lights? The application is low drain, alkaline...
3 comments posted 22yrs
posted by nospamfakeaddress
3 comments posted 22yrs posted by nospamfakeaddress

Triac Orientation

Im trying to make something with a Triac 2N6343A T0-220 See Schematic at http://www.uoguelph.ca/~antoon/gadgets/relays/...
4 comments posted 22yrs
posted by stacy
4 comments posted 22yrs posted by stacy

Digital Camera

I have looked everywhere for a forum on camera repairs, with no luck. I have an Olympus d-100 digital camera (Camedia,...
4 comments posted 22yrs
posted by PRMincey
4 comments posted 22yrs posted by PRMincey

PIC mcu basics

Hi all, I'm sorry if this question is asked several times before. I want know the difference between C and F series mic...
7 comments posted 22yrs
posted by nospam4u_jack
7 comments posted 22yrs posted by nospam4u_jack