[sdiy] AM reciver

[Gareth B.]

>>does anyone know much about building a AM reciver ? i was thinking
>>that it would be a intresting "noise source" and random sound
>>generater

> You do realize that you can probably buy one for far less money than the
> parts would cost you? Unless you really want to learn how to create a 
> radio
> from scratch, it would be much easier and cheaper to purchase an
> inexpensive one, and then modify it to suit your needs.

Ocean State Electronics, a mail-order supplier of hobby electronic items 
(120 page catalog) offers several single chips which contain complete 
radios; also a few semiconductor receiver kits from Ramsey (broadcast band 
AM and FM, aircraft band, shortwave, ham...)

All-American Five tube radios are reasonably plentiful at yard sales. I 
found one for $15, improved it greatly by replacing one power supply cap.

If you're looking for higher quality and all-new homebrew, there was a 
multipart article in AudioXpress on building a vacuum tube radio.

But if it's just noise you want, ebay often has General Radio Noise 
Generators for less than $30, if bulky black-wrinkle finish electronic 
dinosaurs are your thing, perfect for Mad Scientist arrays of strange 
creations.

-- Paul