Bazz Fuss SW station.

Started by emstin1, November 20, 2010, 05:10:41 PM

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emstin1

Not really a cry for help, just an interesting story.  While BBing a Bazz Fuss with a 1n34a germanium diode, I noticed that when I plugged in my passive HB equipped knock off explorer I was picking up strange sounds.  I Turned up the volume on my amp, and I could definitely hear a radio station.  It sounds like something I've listened to on my little shortwave radio,  so I pull out the little guy and go surfing around the dial, finally landing on around 6080Khz, and sure enough It's China Radio International.  I've built passive AM receivers that use Germanium diodes in the past, but I didn't think I'd ever pick up an international Shortwave station, even with an unshielded circuit.  I found it really interesting, and wondered if anyone else has had any similar experiences. 

mac

I prefer picking up China Radio International than picking up a local radio station and hear Shakira through my Laney  >:(

I sometimes pick up radio stations when I'm breadboarding projects using diodes. In some cases I can stop interference by adding a 47pf cap from the input of the circuit to gnd.

mac
mac@mac-pc:~$ sudo apt install ECC83 EL84

Earthscum

One I remember regarding the BF is when I grabbed a 3906, which is running upside down if you plug it in as a NPN. With whatever else I had in there, I ended up using the PNP in it's reverse avalanche diode region or something. I got Sports Radio.  :(
Give a man Fuzz, and he'll jam for a day... teach a man how to make a Fuzz and he'll never jam again!

http://www.facebook.com/Earthscum

LucifersTrip

Quote from: emstin1 on November 20, 2010, 05:10:41 PM
Not really a cry for help, just an interesting story.  While BBing a Bazz Fuss with a 1n34a germanium diode, I noticed that when I plugged in my passive HB equipped knock off explorer I was picking up strange sounds.  I Turned up the volume on my amp, and I could definitely hear a radio station.  It sounds like something I've listened to on my little shortwave radio,  so I pull out the little guy and go surfing around the dial, finally landing on around 6080Khz, and sure enough It's China Radio International.  I've built passive AM receivers that use Germanium diodes in the past, but I didn't think I'd ever pick up an international Shortwave station, even with an unshielded circuit.  I found it really interesting, and wondered if anyone else has had any similar experiences.  

You're lucky. I usually pick up really bad right wing talk shows (here in the US)... What country are you in?  
always think outside the box

DDD

Corroded jacks and\or plugs are very helpful for the radio receiving. I would like to recommend them without any hesitation.  :icon_eek:
Too old to rock'n'roll, too young to die

mac

Quote from: DDD on November 21, 2010, 03:39:08 AM
Corroded jacks and\or plugs are very helpful for the radio receiving. I would like to recommend them without any hesitation.  :icon_eek:

Every day I learn something new  :D

mac
mac@mac-pc:~$ sudo apt install ECC83 EL84

Earthscum

Quote from: DDD on November 21, 2010, 03:39:08 AM
Corroded jacks and\or plugs are very helpful for the radio receiving. I would like to recommend them without any hesitation.  :icon_eek:

Yes! Metal oxides form VERY good diodes...

http://www.instructables.com/id/How-to-make-a-copper-oxide-diode/

Give a man Fuzz, and he'll jam for a day... teach a man how to make a Fuzz and he'll never jam again!

http://www.facebook.com/Earthscum

emstin1

Quote from: LucifersTrip on November 21, 2010, 02:32:15 AM
Quote from: emstin1 on November 20, 2010, 05:10:41 PM
Not really a cry for help, just an interesting story.  While BBing a Bazz Fuss with a 1n34a germanium diode, I noticed that when I plugged in my passive HB equipped knock off explorer I was picking up strange sounds.  I Turned up the volume on my amp, and I could definitely hear a radio station.  It sounds like something I've listened to on my little shortwave radio,  so I pull out the little guy and go surfing around the dial, finally landing on around 6080Khz, and sure enough It's China Radio International.  I've built passive AM receivers that use Germanium diodes in the past, but I didn't think I'd ever pick up an international Shortwave station, even with an unshielded circuit.  I found it really interesting, and wondered if anyone else has had any similar experiences.  

You're lucky. I usually pick up really bad right wing talk shows (here in the US)... What country are you in?  

I'm in the US.  About 40 miles south of Pittsburgh.  It was a relay from Radio Canada, but still. 

emstin1

Quote from: DDD on November 21, 2010, 03:39:08 AM
Corroded jacks and\or plugs are very helpful for the radio receiving. I would like to recommend them without any hesitation.  :icon_eek:

Yeah, I remember making little foxhole radios with a rusty razor blade, coiled enameled wire and a safety pin in 8th grade science class. The amazing things one can do with a bunch of junk.