transistor radio??????

[jamerick]

well first of all id like to say hello all. im new to the world of diy electronics i mean COMPLETELY new, i am really interestesd in learning to build electronics. but i dont know where to begin i read about building a power amp but i cant read the schematics very well. i have very basic knoweledge of electronics i know ohms law a bit. im looking for something simple to build inexpensive like maybe a simple radio or something so if anyone knows where to find instructions on how to build one and what parts i would need to get started would b greatly appreciated

[halojoy]

A radio is not as simple to build as for instance an amplifier
Because it deals with much higher frequencies and a lot of filters.

(Radio designers have to be very skillful in the design and the layout of the circuit. An amplifier constructed by such a person can be very good!)

But if you use some "radio-ICs", they have the most incorporated inside one IC.
Then it need not to be so difficult.

And there are some very easy radio you can build,
for medium wave MV and shortwave SW.
Uses a handful of components.
That would maybe be a good start. But you can not listen to FM (UKV, 88-108MHz, 100.000.000 Hz) with it.

Another good start could be a variable voltage power supply.
It can put out all different voltages,
that different electrical devices need.
It can also be used as a battery eliminator,
and save you battery cost.

[jamerick]

ok i dont get what u meant . an amplifier is easier to make?

[jamerick]

like i said im new and dont know anything about building an amplifier or any electronic components

[Lligior]

The best place to start is with some kind of kit. A radio kit or an amplifier kit. I would have to say halojoy is right, the speed which a power amplifier operates at is much lower than a radio. The equipment needed to test the poweramp is much cheaper. The key here is kit. If you would like to build a poweramp, buy a kit from a company that will answer your questions. I don't know which company would be best, but when you have an idea post it here and you will get lots of opinions.

[planet10]

Originally posted by Lligior
The best place to start is with some kind of kit. A radio kit or an amplifier kit.

Right he is.

These guys have a large range of kits. Once you get past the big bucks stuff they have quite a range of stuff for not much money -- one of my favorites is the chip-amp semi-kit (board & parts less heatsink, case & PS) for $12 CAD.

dave

[jackinnj]

I think that the best way to start, if electronics is completely de novo, is to browse through the ARRL website www.arrl.org and pick up an intro book on electronics. The ARRL has an extremely active program on electronics education -- and there are construction projects with pictures easy enough for virtually anyone. These books can also be found in public libraries.

there are a number of great web-resources in addition. On usenet there is "rec.radio.amateur.homebrew", on the WWW there is the New Jersey QRP (low power) net -- they have projects from very basic to highly advanced :http://www.njqrp.org/